web/index.html

   1 <!DOCTYPE html>
   2 <html lang="en">
   3 <head>
   4         <title>netdata dashboard</title>
   5
   6         <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
   7         <meta charset="utf-8">
   8         <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
   9         <meta name="viewport" content="width=device-width, initial-scale=1">
  10         <meta name="apple-mobile-web-app-capable" content="yes">
  11         <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
  12         <meta name="author" content="costa@tsaousis.gr">
  13
  14         <link rel="shortcut icon" href="images/seo-performance-multi-size.ico">
  15
  16         <link rel="apple-touch-icon" href="images/seo-performance-72.png">
  17         <link rel="apple-touch-icon" sizes="72x72" href="images/seo-performance-72.png">
  18         <link rel="apple-touch-icon" sizes="114x114" href="images/seo-performance-114.png">
  19
  20         <link rel="icon" type="image/png" sizes="512x512" href="images/seo-performance-512.png">
  21         <link rel="icon" type="image/png" sizes="256x256" href="images/seo-performance-256.png">
  22         <link rel="icon" type="image/png" sizes="128x128" href="images/seo-performance-128.png">
  23         <link rel="icon" type="image/png" sizes="64x64" href="images/seo-performance-64.png">
  24         <link rel="icon" type="image/png" sizes="48x48" href="images/seo-performance-48.png">
  25         <link rel="icon" type="image/png" sizes="32x32" href="images/seo-performance-32.png">
  26         <link rel="icon" type="image/png" sizes="24x24" href="images/seo-performance-24.png">
  27         <link rel="icon" type="image/png" sizes="16x16" href="images/seo-performance-16.png">
  28
  29         <meta property="og:locale" content="en_US" />
  30         <meta property="og:image" content="http://my-netdata.io/images/post.png"/>
  31         <meta property="og:url" content="http://my-netdata.io/"/>
  32         <meta property="og:type" content="website"/>
  33         <meta property="og:site_name" content="netdata"/>
  34         <meta property="og:title" content="netdata - real-time performance monitoring, done right!"/>
  35         <meta property="og:description" content="Stunning real-time dashboards, blazingly fast and extremely interactive. Zero configuration, zero dependencies, zero maintenance." />
  36
  37         <style>
  38
  39         /* prevent body from hiding under the navbar */
  40         body {
  41                 padding-top: 50px;
  42         }
  43
  44         .modal-wide .modal-dialog {
  45                 width: 80%;
  46         }
  47
  48         /* fix # anchors scrolling under the navbar
  49            https://github.com/twbs/bootstrap/issues/1768#issuecomment-46519033
  50          */
  51         h1 {
  52                 position: relative;
  53                 z-index: -1;
  54         }
  55         h2 {
  56                 position: relative;
  57                 z-index: -2;
  58         }
  59         h1:before, h2:before {
  60                 display: block;
  61                 content: " ";
  62                 margin-top: -70px;
  63                 height: 70px;
  64                 visibility: hidden;
  65         }
  66
  67         .p {
  68                 display: block;
  69                 margin-top: 15px;
  70         }
  71
  72         .option-row,
  73         .option-control {
  74                 vertical-align: top;
  75                 padding: 10px;
  76                 padding-top: 30px;
  77                 padding-left: 30px;
  78         }
  79
  80         .option-info {
  81                 padding: 10px;
  82         }
  83
  84         .chart-message {
  85                 display: block;
  86                 margin-top: 10px;
  87         }
  88
  89         .container {
  90                 width: 90% !important;
  91         }
  92
  93         #masthead h1 {
  94                 /*font-size: 30px;*/
  95                 line-height: 1;
  96                 padding-top: 30px;
  97         }
  98
  99         #masthead .well {
 100                 margin-top:4%;
 101         }
 102
 103         /* fix the navbar shifting when a modal is open */
 104         /* https://github.com/twbs/bootstrap/issues/14040#issuecomment-159891033 */
 105         body.modal-open{
 106                 width: 100% !important;
 107                 padding-right: 0 !important;
 108 /*              overflow-y: scroll !important; */
 109 /*              position: fixed !important;*/
 110                 overflow: visible;
 111         }
 112
 113         /*
 114          * Side navigation
 115          *
 116          * Scrollspy and affixed enhanced navigation to highlight sections and secondary
 117          * sections of docs content.
 118          */
 119
 120         .affix {
 121                 position: static;
 122                 top: 70px !important;
 123                 /*width: 220px;*/
 124         }
 125
 126         .affix-top {
 127                 /*width: 220px;*/
 128         }
 129
 130         .dashboard-sidebar {
 131                 max-height: calc(100% - 70px) !important;
 132                 overflow-y: auto;
 133                 /*width: 220px !important;*/
 134         }
 135
 136         /* By default it's not affixed in mobile views, so undo that */
 137         .dashboard-sidebar.affix {
 138                 position: static;
 139         }
 140
 141         @media (min-width: 768px) {
 142                 .dashboard-sidebar {
 143                         padding-left: 20px;
 144                 }
 145         }
 146
 147         /* First level of nav */
 148         .dashboard-sidenav {
 149                 margin-top: 20px;
 150                 margin-bottom: 20px;
 151         }
 152
 153         /* All levels of nav */
 154         .dashboard-sidebar .nav > li > a {
 155                 display: block;
 156                 padding: 4px 20px;
 157                 font-size: 13px;
 158                 font-weight: 500;
 159                 color: #767676;
 160         }
 161         .dashboard-sidebar .nav > li > a:hover,
 162         .dashboard-sidebar .nav > li > a:focus {
 163                 padding-left: 19px;
 164                 color: #563d7c;
 165                 text-decoration: none;
 166                 background-color: transparent;
 167                 border-left: 1px solid #563d7c;
 168         }
 169         .dashboard-sidebar .nav > .active > a,
 170         .dashboard-sidebar .nav > .active:hover > a,
 171         .dashboard-sidebar .nav > .active:focus > a {
 172                 padding-left: 18px;
 173                 font-weight: bold;
 174                 color: #563d7c;
 175                 background-color: transparent;
 176                 border-left: 2px solid #563d7c;
 177         }
 178
 179         /* Nav: second level (shown on .active) */
 180         .dashboard-sidebar .nav .nav {
 181                 display: none; /* Hide by default, but at >768px, show it */
 182                 padding-bottom: 10px;
 183         }
 184         .dashboard-sidebar .nav .nav > li > a {
 185                 padding-top: 1px;
 186                 padding-bottom: 1px;
 187                 padding-left: 30px;
 188                 font-size: 12px;
 189                 font-weight: normal;
 190         }
 191         .dashboard-sidebar .nav .nav > li > a:hover,
 192         .dashboard-sidebar .nav .nav > li > a:focus {
 193                 padding-left: 29px;
 194         }
 195         .dashboard-sidebar .nav .nav > .active > a,
 196         .dashboard-sidebar .nav .nav > .active:hover > a,
 197         .dashboard-sidebar .nav .nav > .active:focus > a {
 198                 padding-left: 28px;
 199                 font-weight: 500;
 200         }
 201
 202         .dropdown-menu {
 203                 min-width: 200px;
 204         }
 205         .dropdown-menu.columns-2 {
 206                 margin: 0;
 207                 padding: 0;
 208                 width: 400px;
 209         }
 210         .dropdown-menu li a {
 211                 padding: 5px 15px;
 212                 font-weight: 300;
 213         }
 214         .dropdown-menu.multi-column {
 215                 overflow-x: hidden;
 216         }
 217         .multi-column-dropdown {
 218                 list-style: none;
 219                 padding: 0;
 220         }
 221         .multi-column-dropdown li a {
 222                 display: block;
 223                 clear: both;
 224                 line-height: 1.428571429;
 225                 white-space: normal;
 226         }
 227         .multi-column-dropdown li a:hover {
 228                 text-decoration: none;
 229                 color: #f5f5f5;
 230                 background-color: #262626;
 231         }
 232         .scrollable-menu {
 233                 height: auto;
 234                 max-height: 80vh;
 235                 overflow-x: hidden;
 236         }
 237
 238         /* Back to top (hidden on mobile) */
 239         .back-to-top,
 240         .dashboard-theme-toggle {
 241                 display: none;
 242                 padding: 4px 10px;
 243                 margin-top: 10px;
 244                 margin-left: 10px;
 245                 font-size: 12px;
 246                 font-weight: 500;
 247                 color: #999;
 248         }
 249         .back-to-top:hover,
 250         .dashboard-theme-toggle:hover {
 251                 color: #563d7c;
 252                 text-decoration: none;
 253         }
 254         .dashboard-theme-toggle {
 255                 margin-top: 0;
 256         }
 257
 258         @media (min-width: 768px) {
 259                 .back-to-top,
 260                 .dashboard-theme-toggle {
 261                         display: block;
 262                 }
 263
 264                 /* Widen the fixed sidebar */
 265                 .dashboard-sidebar.affix,
 266                 .dashboard-sidebar.affix-top,
 267                 .dashboard-sidebar.affix-bottom {
 268                         width: 200px !important;
 269                 }
 270
 271                 .dashboard-sidebar.affix {
 272                         position: fixed; /* Undo the static from mobile first approach */
 273                         top: 20px;
 274                 }
 275
 276                 .dashboard-sidebar.affix-bottom {
 277                         position: absolute; /* Undo the static from mobile first approach */
 278                 }
 279
 280                 .dashboard-sidebar.affix-bottom .dashboard-sidenav,
 281                 .dashboard-sidebar.affix .dashboard-sidenav {
 282                         margin-top: 0;
 283                         margin-bottom: 0;
 284                 }
 285         }
 286
 287         /* Show and affix the side nav when space allows it */
 288         @media (min-width: 992px) {
 289                 .dashboard-sidebar .nav > .active > ul {
 290                         display: block;
 291                 }
 292
 293                 /* Widen the fixed sidebar */
 294                 .dashboard-sidebar.affix,
 295                 .dashboard-sidebar.affix-top,
 296                 .dashboard-sidebar.affix-bottom {
 297                         width: 200px !important;
 298                 }
 299                 .dashboard-sidebar.affix {
 300                         position: fixed; /* Undo the static from mobile first approach */
 301                         top: 20px;
 302                 }
 303                 .dashboard-sidebar.affix-bottom {
 304                         position: absolute; /* Undo the static from mobile first approach */
 305                 }
 306                 .dashboard-sidebar.affix-bottom .dashboard-sidenav,
 307                 .dashboard-sidebar.affix .dashboard-sidenav {
 308                         margin-top: 0;
 309                         margin-bottom: 0;
 310                 }
 311         }
 312
 313         @media (min-width: 1200px) {
 314                 /* Widen the fixed sidebar again */
 315                 .dashboard-sidebar.affix-bottom,
 316                 .dashboard-sidebar.affix-top,
 317                 .dashboard-sidebar.affix {
 318                         width: 263px;
 319                 }
 320         }
 321         </style>
 322
 323         <!-- you can set your netdata server globally, by ucommenting this -->
 324         <!-- you can also give a different server per chart, with the attribute: data-host="http://netdata.server:19999" -->
 325         <!-- <script> netdataServer = "http://box:19999"; </script> -->
 326
 327         <!-- check which theme to use -->
 328         <script>
 329                 function loadLocalStorage(name) {
 330                         var ret = null;
 331
 332                         try {
 333                                 if(typeof Storage !== "undefined" && typeof localStorage === 'object')
 334                                         ret = localStorage.getItem(name);
 335                         }
 336                         catch(error) {
 337                                 ;
 338                         }
 339
 340                         if(typeof ret === 'undefined' || ret === null)
 341                                 return null;
 342
 343                         return ret;
 344                 }
 345
 346                 function saveLocalStorage(name, value) {
 347                         try {
 348                                 if(typeof Storage !== "undefined" && typeof localStorage === 'object') {
 349                                         localStorage.setItem(name, value.toString());
 350                                         return true;
 351                                 }
 352                         }
 353                         catch(error) {
 354                                 ;
 355                         }
 356
 357                         return false;
 358                 }
 359
 360                 function getTheme(def) {
 361                         var ret = loadLocalStorage('netdataTheme');
 362                         if(typeof ret === 'undefined' || ret === null || ret === 'undefined')
 363                                 return def;
 364                         else
 365                                 return ret;
 366                 }
 367
 368                 var netdataTheme = getTheme('slate');
 369
 370                 function setTheme(theme) {
 371                         if(theme === netdataTheme) return false;
 372
 373                         return saveLocalStorage('netdataTheme', theme);
 374                 }
 375
 376                 var netdataRegistryCallback = function(machines_array) {
 377                         var el = '';
 378                         var a1 = '';
 379                         var found = 0;
 380
 381                         if(machines_array) {
 382                                 function name_comparator_desc(a, b) {
 383                                         if (a.name > b.name) return -1;
 384                                         if (a.name < b.name) return 1;
 385                                         return 0;
 386                                 }
 387
 388                                 var machines = machines_array.sort(name_comparator_desc);
 389                                 var len = machines.length;
 390                                 while(len--) {
 391                                         var u = machines[len];
 392                                         found++;
 393                                         el += '<li id="registry_server_' + u.guid + '"><a class="registry_link" href="' + u.url + '" onClick="return gotoServerModalHandler(\'' + u.guid + '\');">' + u.name + '</a></li>';
 394                                         a1 += '<li id="registry_action_' + u.guid + '"><a href="#" onclick="deleteRegistryModalHandler(\'' + u.guid + '\',\'' + u.name + '\',\'' + u.url + '\'); return false;"><i class="fa fa-trash-o" aria-hidden="true" style="color: #999;"></i></a></li>';
 395                                 }
 396                         }
 397
 398                         if(!found) {
 399                                 if(machines)
 400                                         el += '<li><a href="https://github.com/firehol/netdata/wiki/mynetdata-menu-item" style="color: #666;" target="_blank">your netdata server list is empty...</a></li>';
 401                                 else
 402                                         el += '<li><a href="https://github.com/firehol/netdata/wiki/mynetdata-menu-item" style="color: #666;" target="_blank">failed to contact the registry...</a></li>';
 403
 404                                 a1 += '<li><a href="#" onClick="return false;">&nbsp;</a></li>';
 405
 406                                 el += '<li role="separator" class="divider"></li>' +
 407                                                 '<li><a href="//london.netdata.rocks/default.html">EU - London (DigitalOcean.com)</a></li>' +
 408                                                 '<li><a href="//atlanta.netdata.rocks/default.html">US - Atlanta (CDN77.com)</a></li>' +
 409                                                 '<li><a href="//athens.netdata.rocks/default.html">EU - Athens</a></li>';
 410                                 a1 += '<li role="separator" class="divider"></li>' +
 411                                                 '<li><a href="#">&nbsp;</a></li>' +
 412                                                 '<li><a href="#">&nbsp;</a></li>'+
 413                                                 '<li><a href="#">&nbsp;</a></li>';
 414                         }
 415
 416                         el += '<li role="separator" class="divider"></li>';
 417                         a1 += '<li role="separator" class="divider"></li>';
 418
 419                         el += '<li><a href="https://github.com/firehol/netdata/wiki/mynetdata-menu-item" style="color: #999;" target="_blank">What is this?</a></li>';
 420                         a1 += '<li><a href="#" style="color: #999;" onclick="switchRegistryModalHandler(); return false;"><i class="fa fa-cog" aria-hidden="true" style="color: #999;"></i></a></li>'
 421
 422                         document.getElementById('mynetdata_servers').innerHTML = el;
 423                         document.getElementById('mynetdata_servers2').innerHTML = el;
 424                         document.getElementById('mynetdata_actions1').innerHTML = a1;
 425
 426                         gotoServerInit();
 427                 };
 428
 429         </script>
 430
 431         <!-- load the dashboard manager - it will do the rest -->
 432         <script type="text/javascript" src="dashboard.js?v40"></script>
 433 </head>
 434
 435 <body data-spy="scroll" data-target="#sidebar">
 436         <nav class="navbar navbar-default navbar-fixed-top" role="banner">
 437                 <div class="container">
 438                         <nav id="mynetdata_nav" class="collapse navbar-collapse navbar-left hidden-sm hidden-xs" role="navigation" style="padding-right: 20px;">
 439                                 <ul class="nav navbar-nav">
 440                                         <li class="dropdown">
 441                                                 <a href="#" class="dropdown-toggle" data-toggle="dropdown" id="current_view">my-netdata <strong class="caret"></strong></a>
 442                                                 <ul class="dropdown-menu scrollable-menu inpagemenu multi-column columns-2" role="menu">
 443                                                         <div class="row">
 444                                                                 <div class="col-sm-6" style="width: 85%; padding-right: 0;">
 445                                                                         <ul id="mynetdata_servers" class="multi-column-dropdown">
 446                                                                                 <li><a href="#" onclick="return false;" style="color: #999;">loading...</a></li>
 447                                                                         </ul>
 448                                                                 </div>
 449                                                                 <div class="col-sm-3 hidden-xs" style="width: 15%; padding-left: 0;">
 450                                                                         <ul id="mynetdata_actions1" class="multi-column-dropdown">
 451                                                                         <li style="color: #999;">&nbsp;</li>
 452                                                                         </ul>
 453                                                                 </div>
 454                                                         </div>
 455                                                 </ul>
 456                                         </li>
 457                                 </ul>
 458                         </nav>
 459                         <div class="navbar-header">
 460                                 <button class="navbar-toggle" type="button" data-toggle="collapse" data-target=".navbar-collapse">
 461                                         <span class="sr-only">Toggle navigation</span>
 462                                         <span class="icon-bar"></span>
 463                                         <span class="icon-bar"></span>
 464                                         <span class="icon-bar"></span>
 465                                 </button>
 466                                 <a href="/" class="navbar-brand" id="hostname">netdata</a>
 467                         </div>
 468                         <nav class="collapse navbar-collapse navbar-right" role="navigation">
 469                                 <ul class="nav navbar-nav">
 470                                         <li class="hidden-sm"><a href="#" class="btn" data-toggle="modal" data-target="#optionsModal"><i class="fa fa-cog"></i> settings</a></li>
 471                                         <li class="hidden-sm"><a href="https://github.com/firehol/netdata/wiki" class="btn" target="_blank"><i class="fa fa-github"></i> community</a></li>
 472                                         <li class="hidden-sm" id="updateButton"><a href="#" class="btn" data-toggle="modal" data-target="#updateModal"><i class="fa fa-cloud-download"></i> update</a></li>
 473                                         <li class="hidden-sm"><a href="#" class="btn" data-toggle="modal" data-target="#helpModal"><i class="fa fa-question-circle"></i> help</a></li>
 474                                         <li class="dropdown hidden-md hidden-lg hidden-xs">
 475                                                 <a href="#" class="dropdown-toggle" data-toggle="dropdown" id="current_view">Menu <strong class="caret"></strong></a>
 476                                                 <ul class="dropdown-menu scrollable-menu inpagemenu" role="menu">
 477                                                         <li><a href="#" class="btn" data-toggle="modal" data-target="#optionsModal"><i class="fa fa-cog"></i> settings</a></li>
 478                                                         <li><a href="https://github.com/firehol/netdata/wiki" class="btn" target="_blank"><i class="fa fa-github"></i> community</a></li>
 479                                                         <li><a href="#" class="btn" data-toggle="modal" data-target="#helpModal"><i class="fa fa-question-circle"></i> help</a></li>
 480                                                 </ul>
 481                                         </li>
 482                                         <li class="dropdown hidden-sm hidden-md hidden-lg">
 483                                                 <a href="#" class="dropdown-toggle" data-toggle="dropdown" id="current_view">my-netdata <strong class="caret"></strong></a>
 484                                                 <ul id="mynetdata_servers2" class="dropdown-menu scrollable-menu inpagemenu" role="menu">
 485                                                         <li><a href="#" onclick="return false;" style="color: #999;">loading...</a></li>
 486                                                 </ul>
 487                                         </li>
 488                                 </ul>
 489                         </nav>
 490         </nav>
 491                 </div>
 492         </nav>
 493
 494         <div id="masthead" style="display: none;">
 495                 <div class="container">
 496                         <div class="row">
 497                                 <div class="col-md-7">
 498                                         <h1>Netdata
 499                                                 <p class="lead">Real-time performance monitoring, in the greatest possible detail</p>
 500                                         </h1>
 501                                 </div>
 502                                 <div class="col-md-5">
 503                                         <div class="well well-lg">
 504                                                 <div class="row">
 505                                                 <div class="col-md-6">
 506                                                         <b>Drag</b> charts to pan.
 507                                                         <b>Shift + wheel</b> on them, to zoom in and out.
 508                                                         <b>Double-click</b> on them, to reset.
 509                                                         <b>Hover</b> on them too!
 510                                                         </div>
 511                                                 <div class="col-md-6">
 512                                                         <div data-netdata="system.intr" data-chart-library="dygraph" data-dygraph-theme="sparkline" data-dygraph-type="line" data-dygraph-strokewidth="3" data-dygraph-smooth="true" data-dygraph-highlightcirclesize="6" data-after="-90" data-height="60px" data-colors="#C66"></div>
 513                                                         </div>
 514                                                 </div>
 515                                         </div>
 516                                 </div>
 517                         </div>
 518                 </div>
 519         </div>
 520
 521         <div class="container">
 522                 <div class="row">
 523                         <div class="col-md-10" role="main">
 524                                 <div id="charts_div"></div>
 525                         </div>
 526                         <div class="col-md-2" role="complementary">
 527                                 <nav class="dashboard-sidebar hidden-print hidden-xs hidden-sm" id="sidebar" role="menu"></nav>
 528                         </div>
 529                 </div>
 530         </div>
 531
 532         <div id="footer" class="container" style="display: none;">
 533                 <div class="row">
 534                         <div class="col-md-10" role="main">
 535                                 <div class="p">
 536                                         <big><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></big><br/>
 537                                         <i class="fa fa-copyright"></i> Copyright 2016, Costa Tsaousis.<br/>
 538                                         Released under <a href="http://www.gnu.org/licenses/gpl-3.0.en.html" target="_blank">GPL v3 or later</a>.<br/>
 539                                 </div>
 540                                 <div class="p">
 541                                         <small>
 542                                                 <a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a> re-distributes these software tools:
 543
 544                                                 <i class="fa fa-circle"></i> The excellent <a href="http://dygraphs.com/" target="_blank">Dygraphs.com</a> web chart library,
 545                                                 <i class="fa fa-copyright"></i> Copyright 2009, Dan Vanderkam, <a href="http://dygraphs.com/legal.html" target="_blank">MIT License</a>
 546
 547                                                 <i class="fa fa-circle"></i> <a href="http://omnipotent.net/jquery.sparkline/" target="_blank">jQuery Sparklines</a> web chart library,
 548                                                 <i class="fa fa-copyright"></i> Copyright 2009-2012, Splunk Inc., <a href="http://opensource.org/licenses/BSD-3-Clause" target="_blank">New BSD License</a>
 549
 550                                                 <i class="fa fa-circle"></i> <a href="http://benpickles.github.io/peity/" target="_blank">Peity</a> web chart library,
 551                                                 <i class="fa fa-copyright"></i> Copyright 2009-2015, Ben Pickles, <a href="https://github.com/benpickles/peity/blob/master/MIT-LICENCE" target="_blank">MIT License</a>
 552
 553                                                 <i class="fa fa-circle"></i> <a href="https://rendro.github.io/easy-pie-chart/" target="_blank">Easy Pie Chart</a> web chart library,
 554                                                 <i class="fa fa-copyright"></i> Copyright 2013, Robert Fleischmann, <a href="https://github.com/rendro/easy-pie-chart/blob/master/LICENSE" target="_blank">MIT License</a>
 555
 556                                                 <i class="fa fa-circle"></i> <a href="http://bernii.github.io/gauge.js/" target="_blank">Gauge.js</a> web chart library,
 557                                                 <i class="fa fa-copyright"></i> Copyright, Bernard Kobos, <a href="http://bernii.github.io/gauge.js/" target="_blank">MIT License</a>
 558
 559                                                 <i class="fa fa-circle"></i> <a href="https://jquery.org/" target="_blank">jQuery</a>,
 560                                                 <i class="fa fa-copyright"></i> Copyright 2015, jQuery Foundation, <a href="https://jquery.org/license/" target="_blank">MIT License</a>
 561
 562                                                 <i class="fa fa-circle"></i> <a href="http://getbootstrap.com/getting-started/" target="_blank">Bootstrap</a>,
 563                                                 <i class="fa fa-copyright"></i> Copyright 2015, Twitter, <a href="http://getbootstrap.com/getting-started/#license-faqs" target="_blank">MIT License</a>
 564
 565                                                 <i class="fa fa-circle"></i> <a href="http://www.bootstraptoggle.com/" target="_blank">Bootstrap Toggle</a>,
 566                                                 <i class="fa fa-copyright"></i> Copyright (c) 2011-2014 Min Hur, The New York Times Company, <a href="https://github.com/minhur/bootstrap-toggle/blob/master/LICENSE" target="_blank">MIT License</a>
 567
 568                                                 <i class="fa fa-circle"></i> <a href="https://jamesflorentino.github.io/nanoScrollerJS/" target="_blank">NanoScroller</a>,
 569                                                 <i class="fa fa-copyright"></i> Copyright 2012, James Florentino, <a href="https://github.com/jamesflorentino/nanoScrollerJS/blob/master/LICENSE" target="_blank">MIT License</a>
 570
 571                                                 <i class="fa fa-circle"></i> <a href="https://github.com/marcj/css-element-queries" target="_blank">CSS Element Queries</a>,
 572                                                 <i class="fa fa-copyright"></i> Copyright Marc J. Schmidt, <a href="https://github.com/marcj/css-element-queries/blob/master/LICENSE" target="_blank">MIT License</a>
 573
 574                                                 <i class="fa fa-circle"></i> <a href="https://fortawesome.github.io/Font-Awesome/" target="_blank">FontAwesome</a>,
 575                                                 <i class="fa fa-copyright"></i> Created by Dave Gandy, Font: <a href="http://scripts.sil.org/OFL" target="_blank">SIL OFL 1.1 License</a>, CSS: <a href="http://opensource.org/licenses/mit-license.html" target="_blank">MIT License</a>
 576
 577                                                 <i class="fa fa-circle"></i> <a href="http://www.iconsdb.com/soylent-red-icons/seo-performance-icon.html" target="_blank">IconsDB.com Icons</a>, Icons provided as CC0 1.0 Universal (CC0 1.0) Public Domain Dedication.
 578
 579                                                 <i class="fa fa-circle"></i> <a href="http://morrisjs.github.io/morris.js/" target="_blank">morris.js</a>,
 580                                                 <i class="fa fa-copyright"></i> Copyright 2013, Olly Smith, <a href="http://morrisjs.github.io/morris.js/" target="_blank">Simplified BSD License</a>
 581
 582                                                 <i class="fa fa-circle"></i> <a href="http://raphaeljs.com/" target="_blank">Raphaël</a>,
 583                                                 <i class="fa fa-copyright"></i> Copyright 2008, Dmitry Baranovskiy, <a href="http://raphaeljs.com/license.html" target="_blank">MIT License</a>
 584
 585                                                 <i class="fa fa-circle"></i> <a href="http://C3js.org/" target="_blank">C3</a>,
 586                                                 <i class="fa fa-copyright"></i> Copyright 2013, Masayuki Tanaka, <a href="https://github.com/masayuki0812/c3/blob/master/LICENSE" target="_blank">MIT License</a>
 587
 588                                                 <i class="fa fa-circle"></i> <a href="http://D3js.org/" target="_blank">D3</a>,
 589                                                 <i class="fa fa-copyright"></i> Copyright 2015, Mike Bostock, <a href="http://opensource.org/licenses/BSD-3-Clause" target="_blank">BSD License</a>
 590
 591                                         </small>
 592                                 </div>
 593                         </div>
 594                 </div>
 595         </div>
 596
 597         <div class="modal fade" id="welcomeModal" tabindex="-1" role="dialog" aria-labelledby="welcomeModalLabel">
 598                 <div class="modal-dialog modal-lg" role="document">
 599                         <div class="modal-content">
 600                                 <div class="modal-header">
 601                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 602                                         <h4 class="modal-title" id="welcomeModalLabel">Welcome!</h4>
 603                                 </div>
 604                                 <div class="modal-body">
 605                                                 <div class="p">
 606                                                 <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> is the fastest way to visualize metrics. It is a resource efficient, highly optimized system for collecting and visualizing any type of real-time time series data, from CPU usage, disk activity, SQL queries, API calls, web site visitors, etc.
 607                                                 </div>
 608                                                 <div class="p">
 609                                                 <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> tries to visualize the truth of <b>now</b>, in its <b>greatest detail</b>, so that you can get insights of what is happening now and what just happened, on your systems and applications.
 610                                                 </div>
 611                                                 <div class="p">
 612                                                 To make a chart in <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b>, you just need a <b>number</b>. Just a number you can read somehow. <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> will turn this number to a real time, interactive, web chart. For collecting these numbers, it supports <a href="https://github.com/firehol/netdata/wiki/External-Plugins" target="_blank">external plugins</a>, even <a href="https://github.com/firehol/netdata/wiki/General-Info---charts.d" target="_blank">shell</a> or <a href="https://github.com/firehol/netdata/wiki/General-Info---charts.d" target="_blank">node.js</a> plugins. Any computer program, in any language, that can print a few lines of text on its standard output, can be a netdata data collector.
 613                                                 </div>
 614                                                 <div class="p">
 615                                                 <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> can embed charts everywhere, like this one <div data-netdata="system.cpu" data-dimensions="system" data-after="-120" data-width="25%" data-height="15px" data-chart-library="dygraph" data-dygraph-theme="sparkline" data-show-value-of-system-at="system.cpu.system.modal.1"></div> (my CPU system usage which is <span id="system.cpu.system.modal.1" style="display: inline-block; width: 40px; text-align: right;"></span>%),
 616                                                 or this one <div data-netdata="ipv4.tcppackets" data-dimensions="received" data-after="-120" data-width="25%" data-height="15px" data-chart-library="dygraph" data-dygraph-theme="sparkline" data-show-value-of-received-at="ipv4.tcppackets.received.modal.1"></div> (my IPv4 received TCP packets, which are <span id="ipv4.tcppackets.received.modal.1" style="display: inline-block; width: 60px; text-align: right;"></span>/second).
 617                                                 </div>
 618                                                 <div class="p">
 619                                                 You can have <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> charts on your site too. Just give it a <code>div</code> and a real time chart, zoomable and draggable will appear (try it even on these tiny ones - <b>drag</b> them to pan horizontally, <b>shift + drag</b> to zoom in, on <b>chrome shift + mouse wheel</b> to zoom in/out, <b>double click</b> on them to reset them - don't be afraid of <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> performance - <a href="https://github.com/firehol/netdata/wiki/Performance" target="_blank">a raspberry pi 2 can sustain 300 charts updates per second</a>!).
 620                                                 </div>
 621                                                 <div class="p">
 622                                                 For more information please refer to the <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata wiki</a></b>.
 623                                                 </div>
 624                                 </div>
 625                                 <div class="modal-footer">
 626                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 627                                 </div>
 628                         </div>
 629                 </div>
 630         </div>
 631
 632         <div class="modal fade" id="helpModal" tabindex="-1" role="dialog" aria-labelledby="helpModalLabel">
 633                 <div class="modal-dialog modal-lg" role="document">
 634                         <div class="modal-content">
 635                                 <div class="modal-header">
 636                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 637                                         <h4 class="modal-title" id="helpModalLabel">Dashboard Help</h4>
 638                                 </div>
 639                                 <div class="modal-body">
 640
 641                                         <h4>Dygraphs (line, area and stacked area charts)</h4>
 642
 643                                         <!-- Nav tabs -->
 644                                         <ul class="nav nav-tabs" role="tablist">
 645                                                 <li role="presentation" class="active"><a href="#help_mouse" aria-controls="help_mouse" role="tab" data-toggle="tab">Mouse Interface</a></li>
 646                                                 <li role="presentation"><a href="#help_touch" aria-controls="help_touch" role="tab" data-toggle="tab">Touch Interface</a></li>
 647                                         </ul>
 648
 649                                         <!-- Tab panes -->
 650                                         <div class="tab-content">
 651                                                 <div role="tabpanel" class="tab-pane active" id="help_mouse">
 652                                                         <div class="p">
 653                                                                 <h4>Mouse Over / Hover</h4>
 654                                                                 Mouse over on a chart to show, at its legend, the values for the timestamp under the mouse (the chart will also highlight the point at the chart).
 655                                                                 <br/>
 656                                                                 All the other visible charts will also show and highlight their values for the same timestamp.
 657                                                         </div>
 658                                                         <hr/>
 659                                                         <div class="p">
 660                                                                 <h4>Drag Chart Contents</h4>
 661                                                                 Drag the contents of a chart to pan it horizontally.
 662                                                                 <br/>
 663                                                                 All the charts will follow soon after you let the chart alone (this little delay is by design: it speeds up your browser and lets you focus on what you are exploring).
 664                                                                 <br/>
 665                                                                 Once a chart is panned, auto refreshing stops for all charts. To enable it again, <b>double click</b> a panned chart.
 666                                                         </div>
 667                                                         <hr/>
 668                                                         <div class="p">
 669                                                                 <h4>Double Click</h4>
 670                                                                 Double Click a chart to reset all the charts to their default auto-refreshing state.
 671                                                         </div>
 672                                                         <hr/>
 673                                                         <div class="p">
 674                                                                 <h4>SHIFT + Drag</h4>
 675                                                                 While pressing the shift key, click on the contents of a chart and move the mouse to select an area, to zoom in. The other charts will follow too. Zooming is performed in two phases:
 676                                                                 <ul>
 677                                                                         <li>The already loaded chart contents are zoomed (low resolution)</li>
 678                                                                         <li>New data are transferred from the netdata server, to refresh the chart with possibly more detail.</li>
 679                                                                 </ul>
 680                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 681                                                         </div>
 682                                                         <hr/>
 683                                                         <div class="p">
 684                                                                 <h4>SHIFT + Mouse Wheel <small>(does not work on firefox and IE/Edge)</small></h4>
 685                                                                 While pressing the shift key and the mouse pointer is over the contents of a chart, scroll the mouse wheel to zoom in or out. This kind of zooming is aligned to center below the mouse pointer. The other charts will follow too.
 686                                                                 <br/>
 687                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 688                                                         </div>
 689                                                         <hr/>
 690                                                         <div class="p">
 691                                                                 <h4>Legend Operations</h4>
 692                                                                 Click on the label or value of a dimension, will select / un-select this dimension.
 693                                                                 <br/>
 694                                                                 You can press any of the SHIFT or CONTROL keys and then click on legend labels or values, to select / un-select multiple dimensions.
 695                                                         </div>
 696                                                 </div>
 697                                                 <div role="tabpanel" class="tab-pane" id="help_touch">
 698                                                         <div class="p">
 699                                                                 <h4>Single Tap</h4>
 700                                                                 Single Tap on the contents of a chart to show, at its legend, the values for the timestamp tapped (the chart will also highlight the point at the chart).
 701                                                                 <br/>
 702                                                                 All the other visible charts will also show and highlight their values for the same timestamp.
 703                                                         </div>
 704                                                         <hr/>
 705                                                         <div class="p">
 706                                                                 <h4>Drag Chart Contents</h4>
 707                                                                 Touch and Drag the contents of a chart to pan it horizontally.
 708                                                                 <br/>
 709                                                                 All the charts will follow soon after you let the chart alone (this little delay is by design: it speeds up your browser and lets you focus on what you are exploring).
 710                                                                 <br/>
 711                                                                 Once a chart is panned, auto refreshing stops for all charts. To enable it again, <b>double tap</b> a panned chart.
 712                                                         </div>
 713                                                         <hr/>
 714                                                         <div class="p">
 715                                                                 <h4>Double Tap</h4>
 716                                                                 Double tap a chart to reset all the charts to their default auto-refreshing state.
 717                                                         </div>
 718                                                         <hr/>
 719                                                         <div class="p">
 720                                                                 <h4>Zoom <small>(does not work on firefox and IE/Edge)</small></h4>
 721                                                                 With two fingers, zoom in or out.
 722                                                                 <br/>
 723                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 724                                                         </div>
 725                                                         <hr/>
 726                                                         <div class="p">
 727                                                                 <h4>Legend Operations</h4>
 728                                                                 Tap on the label or value of a dimension, will select / un-select this dimension.
 729                                                         </div>
 730                                                 </div>
 731                                         </div>
 732                                 </div>
 733                                 <div class="modal-footer">
 734                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 735                                 </div>
 736                         </div>
 737                 </div>
 738         </div>
 739
 740         <div class="modal fade" id="optionsModal" tabindex="-1" role="dialog" aria-labelledby="optionsModalLabel">
 741                 <div class="modal-dialog modal-lg" role="document">
 742                         <div class="modal-content">
 743                                 <div class="modal-header">
 744                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 745                                         <h4 class="modal-title" id="optionsModalLabel">netdata dashboard options</h4>
 746                                 </div>
 747                                 <div class="modal-body">
 748                                         <center>
 749                                                 <small style="color: #BBBBBB;">These are browser settings. Each viewer has its own. They do not affect the operation of your netdata server.
 750                                                 <br/>
 751                                                 Settings take effect immediately and are saved permanently to browser local storage (except the refresh on focus / always option).
 752                                                 <br/>
 753                                                 To reset all options (including charts sizes) to their defaults, click <a href="#" onclick="resetDashboardOptions(); return false;">here</a>.</small>
 754                                         </center>
 755                                         <div style="padding: 10px;"></div>
 756
 757                                         <!-- Nav tabs -->
 758                                         <ul class="nav nav-tabs" role="tablist">
 759                                                 <li role="presentation" class="active"><a href="#settings_performance" aria-controls="settings_performance" role="tab" data-toggle="tab">Performance</a></li>
 760                                                 <li role="presentation"><a href="#settings_sync" aria-controls="settings_sync" role="tab" data-toggle="tab">Synchronization</a></li>
 761                                                 <li role="presentation"><a href="#settings_visual" aria-controls="settings_visual" role="tab" data-toggle="tab">Visual</a></li>
 762                                         </ul>
 763
 764                                         <!-- Tab panes -->
 765                                         <div class="tab-content">
 766                                                 <div role="tabpanel" class="tab-pane active" id="settings_performance">
 767                                                         <form id="optionsForm1" method="get" class="form-horizontal">
 768                                                                 <div class="form-group">
 769                                                                         <table>
 770                                                                         <tr class="option-row">
 771                                                                                 <td class="option-control"><input id="stop_updates_when_focus_is_lost" type="checkbox" checked data-toggle="toggle" data-offstyle="danger" data-onstyle="success" data-on="On Focus" data-off="Always" data-width="110px"></td>
 772                                                                                 <td class="option-info"><strong>When to refresh the charts?</strong><br/>
 773                                                                                         <small>When set to <b>On Focus</b>, the charts will stop being updated if the page / tab does not have the focus of the user. When set to <b>Always</b>, the charts will always be refreshed. Set it to <b>On Focus</b> it to lower the CPU requirements of the browser (and extend the battery of laptops and tablets) when this page does not have your focus. Set to <b>Always</b> to work on another window (i.e. change the settings of something) and have the charts auto-refresh in this window.</small>
 774                                                                                 </td>
 775                                                                                 </tr>
 776                                                                         <tr class="option-row">
 777                                                                                 <td class="option-control">
 778                                                                                 <input id="eliminate_zero_dimensions" type="checkbox" checked data-toggle="toggle" data-on="Non Zero" data-off="All" data-width="110px">
 779                                                                                 </td>
 780                                                                                 <td class="option-info"><strong>Which dimensions to show?</strong><br/>
 781                                                                                         <small>When set to <b>Non Zero</b>, dimensions that have all their values (within the current view) set to zero will not be transferred from the netdata server (except if all dimensions of the chart are zero, in which case this setting does nothing - all dimensions are transferred and shown). When set to <b>All</b>, all dimensions will always be shown. Set it to <b>Non Zero</b> to lower the data transferred between netdata and your browser, lower the CPU requirements of your browser (fewer lines to draw) and increase the focus on the legends (fewer entries at the legends).</small>
 782                                                                                 </td>
 783                                                                                 </tr>
 784                                                                         <tr class="option-row">
 785                                                                                 <td class="option-control"><input id="destroy_on_hide" type="checkbox" data-toggle="toggle" data-on="Destroy" data-off="Hide" data-width="110px"></td>
 786                                                                                 <td class="option-info"><strong>How to handle hidden charts?</strong><br/>
 787                                                                                         <small>When set to <b>Destroy</b>, charts that are not in the current viewport of the browser (are above, or below the visible area of the page), will be destroyed and re-created if and when they become visible again. When set to <b>Hide</b>, the not-visible charts will be just hidden, to simplify the DOM and speed up your browser. Set it to <b>Destroy</b>, to lower the memory requirements of your browser. Set it to <b>Hide</b> for smoother page scrolling.</small>
 788                                                                                 </td>
 789                                                                                 </tr>
 790                                                                         </table>
 791                                                                 </div>
 792                                                         </form>
 793                                                 </div>
 794                                                 <div role="tabpanel" class="tab-pane" id="settings_sync">
 795                                                         <form id="optionsForm2" method="get" class="form-horizontal">
 796                                                                 <div class="form-group">
 797                                                                         <table>
 798                                                                         <tr class="option-row">
 799                                                                                 <td class="option-control"><input id="parallel_refresher" type="checkbox" checked data-toggle="toggle" data-on="Parallel" data-off="Sequential" data-width="110px"></td>
 800                                                                                 <td class="option-info"><strong>Which chart refresh policy to use?</strong><br/>
 801                                                                                         <small>When set to <b>parallel</b>, visible charts are refreshed in parallel (all queries are sent to netdata server in parallel) and are rendered asynchronously. When set to <b>sequential</b> charts are refreshed one after another. Set it to parallel if your browser can cope with it (most modern browsers do), set it to sequential if you work on an older/slower computer.</small>
 802                                                                                 </td>
 803                                                                                 </tr>
 804                                                                         <tr class="option-row" id="concurrent_refreshes_row">
 805                                                                                 <td class="option-control"></td>
 806                                                                                 <td class="option-info">
 807                                                                                         <table>
 808                                                                                         <tr class="option-row">
 809                                                                                         <td class="option-control">
 810                                                                                         <input id="concurrent_refreshes" type="checkbox" checked data-toggle="toggle" data-on="Resync" data-off="Best Effort" data-width="110px">
 811                                                                                         </td>
 812                                                                                         <td class="option-info">
 813                                                                                         <strong>Shall we re-sync chart refreshes?</strong><br/>
 814                                                                                         <small>When set to <b>Resync</b>, the dashboard will attempt to re-synchronize all the charts so that they are refreshed concurrently. When set to <b>Best Effort</b>, each chart may be refreshed with a little time difference to the others. Normally, the dashboard starts refreshing them in parallel, but depending on the speed of your computer and the network latencies, charts start having a slight time difference. Setting this to <b>Resync</b> will attempt to re-synchronize the charts on every update. Setting it to <b>Best Effort</b> may lower the pressure on your browser and the network.</small>
 815                                                                                         </td>
 816                                                                                         </tr>
 817                                                                                         </table>
 818                                                                                 </td>
 819                                                                                 </tr>
 820                                                                         <tr class="option-row">
 821                                                                                 <td class="option-control"><input id="sync_selection" type="checkbox" checked data-toggle="toggle" data-on="Sync" data-off="Don't Sync" data-onstyle="success" data-offstyle="danger" data-width="110px"></td>
 822                                                                                 <td class="option-info"><strong>Sync hover selection on all charts?</strong><br/>
 823                                                                                         <small>When enabled, a selection on one chart will automatically select the same time on all other visible charts and the legends of all visible charts will be updated to show the selected values. When disabled, only the chart getting the user's attention will be selected. Enable it to get better insights of the data. Disable it if you are on a very slow computer that cannot actually do it.</small>
 824                                                                                 </td>
 825                                                                                 </tr>
 826                                                                         <tr class="option-row">
 827                                                                                 <td class="option-control"><input id="sync_pan_and_zoom" type="checkbox" checked data-toggle="toggle"  data-on="Sync" data-off="Don't Sync" data-onstyle="success" data-offstyle="danger" data-width="110px"></td>
 828                                                                                 <td class="option-info"><strong>Sync pan and zoom on all charts?</strong><br/>
 829                                                                                         <small>When enabled, pan and zoom operations on a chart will be replicated to all charts (even the ones that are not currently visible - of course only when they will become visible). When disabled, pan and zoom operations will not be propagated to other charts.</small>
 830                                                                                 </td>
 831                                                                                 </tr>
 832                                                                         </table>
 833                                                                 </div>
 834                                                         </form>
 835                                                 </div>
 836                                                 <div role="tabpanel" class="tab-pane" id="settings_visual">
 837                                                         <form id="optionsForm3" method="get" class="form-horizontal">
 838                                                                 <div class="form-group">
 839                                                                         <table>
 840                                                                         <tr class="option-row">
 841                                                                                 <td class="option-control"><input id="netdata_theme_control" type="checkbox" checked data-toggle="toggle" data-offstyle="danger" data-onstyle="success" data-on="Dark" data-off="White" data-width="110px"></td>
 842                                                                                 <td class="option-info"><strong>Which theme to use?</strong><br/>
 843                                                                                         <small>Netdata comes with two themes: <b>Dark</b> (the default) and <b>White</b>.
 844                                                                                         <br/>
 845                                                                                         <b>Switching this will reload the dashboard</b>.
 846                                                                                         </small>
 847                                                                                 </td>
 848                                                                                 </tr>
 849                                                                         <tr class="option-row">
 850                                                                                 <td class="option-control"><input id="show_help" type="checkbox" checked data-toggle="toggle" data-on="Help Me" data-off="No Help" data-width="110px"></td>
 851                                                                                 <td class="option-info"><strong>Do you need help?</strong><br/>
 852                                                                                         <small>Netdata can show some help in some areas to help you use the dashboard. If all these balloons bother you, disable them using this switch.
 853                                                                                         <br/>
 854                                                                                         <b>Switching this will reload the dashboard</b>.
 855                                                                                         </small>
 856                                                                                 </td>
 857                                                                                 </tr>
 858                                                                         <tr class="option-row">
 859                                                                                 <td class="option-control"><input id="pan_and_zoom_data_padding" type="checkbox" checked data-toggle="toggle"  data-on="Pad" data-off="Don't Pad" data-width="110px"></td>
 860                                                                                 <td class="option-info"><strong>Enable data padding when panning and zooming?</strong><br/>
 861                                                                                         <small>When set to <b>Pad</b> the charts will be padded with more data, both before and after the visible area, thus giving the impression the whole database is loaded. This padding will happen only after the first pan or zoom operation on the chart (initially all charts have only the visible data). When set to <b>Don't Pad</b> only the visible data will be transfered from the netdata server, even after the first pan and zoom operation.</small>
 862                                                                                 </td>
 863                                                                                 </tr>
 864                                                                         <tr class="option-row">
 865                                                                                 <td class="option-control"><input id="smooth_plot" type="checkbox" checked data-toggle="toggle"  data-on="Smooth" data-off="Rough" data-width="110px"></td>
 866                                                                                 <td class="option-info"><strong>Enable Bézier lines on charts?</strong><br/>
 867                                                                                         <small>When set to <b>Smooth</b> the charts libraries that support it, will plot smooth curves instead of simple straight lines to connect the points.
 868                                                                                         <br/>
 869                                                                                         Keep in mind <a href="http://dygraphs.com" target="_blank">dygraphs</a>, the main charting library in netdata dashboards, can only smooth line charts. It cannot smooth area or stacked charts. When set to <b>Rough</b>, this setting can lower the CPU resources consumed by your browser.</small>
 870                                                                                 </td>
 871                                                                                 </tr>
 872                                                                         </table>
 873                                                                 </div>
 874                                                         </form>
 875                                                 </div>
 876                                         </div>
 877                                 </div>
 878                                 <div class="modal-footer">
 879                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 880                                 </div>
 881                         </div>
 882                 </div>
 883         </div>
 884
 885
 886         <div class="modal fade" id="updateModal" tabindex="-1" role="dialog" aria-labelledby="updateModalLabel">
 887                 <div class="modal-dialog" role="document">
 888                         <div class="modal-content">
 889                                 <div class="modal-header">
 890                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 891                                         <h4 class="modal-title" id="updateModalLabel">Update Check</h4>
 892                                 </div>
 893                                 <div class="modal-body">
 894                                         Your netdata version: <b><code><span id="netdataVersion">Unknown</span></code></b>
 895                                         <br/>
 896                                         <div style="padding: 10px;"></div>
 897                                         <div id="versionCheckLog">Not checked yet. Please press the Check Now button.</div>
 898                                 </div>
 899                                 <div class="modal-footer">
 900                                         <a href="#" onclick="notifyForUpdate(true); return false;" type="button" class="btn btn-default">Check Now</a>
 901                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 902                                 </div>
 903                         </div>
 904                 </div>
 905         </div>
 906
 907         <div class="modal fade" id="deleteRegistryModal" tabindex="-1" role="dialog" aria-labelledby="deleteRegistryModalLabel">
 908                 <div class="modal-dialog" role="document">
 909                         <div class="modal-content">
 910                                 <div class="modal-header">
 911                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 912                                         <h4 class="modal-title" id="deleteRegistryModalLabel">Delete <span id="deleteRegistryServerName"></span>?</h4>
 913                                 </div>
 914                                 <div class="modal-body">
 915                                         You are about to delete, from your personal list of netdata servers, the following server:
 916                                         <p style="text-align: center; padding-top: 10px; padding-bottom: 10px; line-height: 2;">
 917                                         <b><span id="deleteRegistryServerName2"></span></b>
 918                                         <br/>
 919                                         <b><span id="deleteRegistryServerURL"></span></b>
 920                                         </p>
 921                                         Are you sure you want to do this?
 922                                         <br/>
 923                                         <div style="padding: 10px;"></div>
 924                                         <small>Keep in mind, this server will be added back if and when you visit it again.</small>
 925                                         <br/>
 926                                         <div id="deleteRegistryResponse" style="display: block; width: 100%; text-align: center; padding-top: 20px;"></div>
 927                                 </div>
 928                                 <div class="modal-footer">
 929                                         <button type="button" class="btn btn-success" data-dismiss="modal">keep it</button>
 930                                         <a href="#" onclick="notifyForDeleteRegistry(true); return false;" type="button" class="btn btn-danger">delete it</a>
 931                                 </div>
 932                         </div>
 933                 </div>
 934         </div>
 935
 936         <div class="modal fade" id="switchRegistryModal" tabindex="-1" role="dialog" aria-labelledby="switchRegistryModalLabel">
 937                 <div class="modal-dialog" role="document">
 938                         <div class="modal-content">
 939                                 <div class="modal-header">
 940                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 941                                         <h4 class="modal-title" id="switchRegistryModalLabel">Switch Netdata Registry Identity</h4>
 942                                 </div>
 943                                 <div class="modal-body">
 944                                         You can copy and paste the following ID to all your browsers (e.g. work and home).
 945                                         <br/>
 946                                         All the browsers with the same ID will identify <b>you</b>, so please don't share this with others.
 947                                         <p style="text-align: center; padding-top: 10px; padding-bottom: 10px; line-height: 2;">
 948                                         <form action="#">
 949                                         <input type="text" class="form-control" id="switchRegistryPersonGUID" placeholder="your personal ID" maxlength="36" autocomplete="off" style="text-align: center; font-size: 1.4em;">
 950                                         </form>
 951                                         </p>
 952                                         Either copy this ID and paste it to another browser, or paste here the ID you have taken from another browser.
 953                                         <p style="padding-top: 10px;"><small>
 954                                                 Keep in mind that:
 955                                                 <ul>
 956                                                         <li>when you switch ID, your previous ID will be lost forever - this is irreversible.</li>
 957                                                         <li>both IDs (your old and the new) must list this netdata at their personal lists.</li>
 958                                                         <li>both IDs have to be known by the registry: <b><span id="switchRegistryURL"></span></b>.</li>
 959                                                         <li>to get a new ID, just clear your browser cookies.</li>
 960                                                 </ul>
 961                                         </small></p>
 962                                         <div id="switchRegistryResponse" style="display: block; width: 100%; text-align: center; padding-top: 20px;"></div>
 963                                 </div>
 964                                 <div class="modal-footer">
 965                                         <button type="button" class="btn btn-success" data-dismiss="modal">cancel</button>
 966                                         <a href="#" onclick="notifyForSwitchRegistry(true); return false;" type="button" class="btn btn-danger">impersonate</a>
 967                                 </div>
 968                         </div>
 969                 </div>
 970         </div>
 971
 972         <div class="modal fade" id="gotoServerModal" tabindex="-1" role="dialog" aria-labelledby="gotoServerModalLabel">
 973                 <div class="modal-dialog" role="document">
 974                         <div class="modal-content">
 975                                 <div class="modal-header">
 976                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 977                                         <h4 class="modal-title" id="gotoServerModalLabel"><span id="gotoServerName"></span></h4>
 978                                 </div>
 979                                 <div class="modal-body">
 980                                         Checking known URLs for this server...
 981                                         <div  style="padding-top: 20px;">
 982                                                 <table id="gotoServerList">
 983                                                 </table>
 984                                         </div>
 985                                         <p style="padding-top: 10px;"><small>
 986                                                 Checks may fail if you are viewing an HTTPS page and the server to be checked is HTTP only.
 987                                         </small></p>
 988                                         <div id="gotoServerResponse" style="display: block; width: 100%; text-align: center; padding-top: 20px;"></div>
 989                                 </div>
 990                                 <div class="modal-footer">
 991                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 992                                 </div>
 993                         </div>
 994                 </div>
 995         </div>
 996
 997 <script>
 998 var this_is_demo = null;
 999 function isdemo() {
1000         if(this_is_demo !== null) return this_is_demo;
1001         this_is_demo = false;
1002
1003         try {
1004                 if(typeof document.location.hostname === 'string') {
1005                         if(document.location.hostname.endsWith('.my-netdata.io') ||
1006                                         document.location.hostname.endsWith('.mynetdata.io') ||
1007                                         document.location.hostname.endsWith('.netdata.rocks') ||
1008                                         document.location.hostname.endsWith('.firehol.org') ||
1009                                         document.location.hostname.endsWith('.netdata.online'))
1010                                         this_is_demo = true;
1011                 }
1012         }
1013         catch(error) {
1014                 ;
1015         }
1016
1017         return this_is_demo;
1018 }
1019
1020 if(isdemo()) {
1021         document.getElementById('masthead').style.display = 'block';
1022 }
1023 var gotoServerValidateRemaining = 0;
1024 var gotoServerMiddleClick = false;
1025 var gotoServerStop = false;
1026 function gotoServerValidateUrl(id, guid, url) {
1027         var penaldy = 0;
1028         if(document.location.toString().startsWith('http://') && url.toString().startsWith('https://'))
1029                         // we penalize https only if the current url is http
1030                         // to allow the user walk through all its servers.
1031                         penaldy = 500;
1032
1033         setTimeout(function() {
1034                 document.getElementById('gotoServerList').innerHTML += '<tr><td style="padding-left: 20px;"><a href="' + url + '" target="_blank">' + url + '</a></td><td style="padding-left: 30px;"><code id="' + guid + '-' + id + '-status">checking...</code></td></tr>';
1035
1036                 NETDATA.registry.hello(url, function(data) {
1037                         if (data) {
1038                                 // console.log('OK ' + id + ' URL: ' + url);
1039                                 document.getElementById(guid + '-' + id + '-status').innerHTML = "OK";
1040                                 var hash = document.location.hash || '';
1041
1042                                 if(!gotoServerStop) {
1043                                         gotoServerStop = true;
1044
1045                                         if(gotoServerMiddleClick) {
1046                                                 window.open(url + hash, '_blank');
1047                                                 gotoServerMiddleClick = false;
1048                                                 document.getElementById('gotoServerResponse').innerHTML = '<b>Opening new window to ' + NETDATA.registry.machines[guid].name + '<br/><a href="' + url + hash + '">' + url + hash + '</a></b><br/>(check your pop-up blocker if it fails)';
1049                                         }
1050                                         else
1051                                                 document.location = url + hash;
1052                                 }
1053                         }
1054                         else {
1055                                 document.getElementById(guid + '-' + id + '-status').innerHTML = "failed!";
1056                                 gotoServerValidateRemaining--;
1057                                 if(gotoServerValidateRemaining <= 0) {
1058                                         gotoServerMiddleClick = false;
1059                                         document.getElementById('gotoServerResponse').innerHTML = '<b>Sorry! I cannot find any operational URL for this server</b>';
1060                                 }
1061                         }
1062                 });
1063         }, (id * 50) + penaldy);
1064 }
1065
1066 function gotoServerModalHandler(guid) {
1067         // console.log('goto server: ' + guid);
1068
1069         gotoServerStop = false;
1070         var len = NETDATA.registry.machines[guid].alternate_urls.length;
1071
1072         document.getElementById('gotoServerResponse').innerHTML = '';
1073         document.getElementById('gotoServerList').innerHTML = '';
1074         document.getElementById('gotoServerName').innerHTML = NETDATA.registry.machines[guid].name;
1075         $('#gotoServerModal').modal('show');
1076
1077         gotoServerValidateRemaining = len;
1078         while(len--)
1079                 gotoServerValidateUrl(len, guid, NETDATA.registry.machines[guid].alternate_urls[len]);
1080
1081         return false;
1082 }
1083
1084 function gotoServerInit() {
1085         $(".registry_link").on('click', function(e) {
1086                 if(e.which === 2) {
1087                         e.preventDefault();
1088                         gotoServerMiddleClick = true;
1089                 }
1090                 else {
1091                         gotoServerMiddleClick = false;
1092                 }
1093
1094                 return true;
1095         });
1096 }
1097
1098 function switchRegistryModalHandler() {
1099         document.getElementById('switchRegistryPersonGUID').value = NETDATA.registry.person_guid;
1100         document.getElementById('switchRegistryURL').innerHTML = NETDATA.registry.server;
1101         document.getElementById('switchRegistryResponse').innerHTML = '';
1102         $('#switchRegistryModal').modal('show');
1103 }
1104
1105 function notifyForSwitchRegistry() {
1106         var n = document.getElementById('switchRegistryPersonGUID').value;
1107
1108         if(n !== '' && n.length === 36) {
1109                 NETDATA.registry.switch(n, function(result) {
1110                         if(result !== null) {
1111                                 $('#switchRegistryModal').modal('hide');
1112                                 NETDATA.registry.init();
1113                         }
1114                         else {
1115                                 document.getElementById('switchRegistryResponse').innerHTML = "<b>Sorry! The registry rejected your request.</b>";
1116                         }
1117                 });
1118         }
1119         else
1120                 document.getElementById('switchRegistryResponse').innerHTML = "<b>The ID you have entered is not a GUID.</b>";
1121 }
1122
1123 var deleteRegistryUrl = null;
1124 function deleteRegistryModalHandler(guid, name, url) {
1125         deleteRegistryUrl = url;
1126         document.getElementById('deleteRegistryServerName').innerHTML = name;
1127         document.getElementById('deleteRegistryServerName2').innerHTML = name;
1128         document.getElementById('deleteRegistryServerURL').innerHTML = url;
1129         document.getElementById('deleteRegistryResponse').innerHTML = '';
1130         $('#deleteRegistryModal').modal('show');
1131 }
1132
1133 function notifyForDeleteRegistry() {
1134         if(deleteRegistryUrl) {
1135                 NETDATA.registry.delete(deleteRegistryUrl, function(result) {
1136                         if(result !== null) {
1137                                 deleteRegistryUrl = null;
1138                                 $('#deleteRegistryModal').modal('hide');
1139                                 NETDATA.registry.init();
1140                         }
1141                         else {
1142                                 document.getElementById('deleteRegistryResponse').innerHTML = "<b>Sorry! this command was rejected by the registry server.</b>";
1143                         }
1144                 });
1145         }
1146 }
1147
1148 var options = {
1149         sparklines_registry: {},
1150         submenu_names: {},
1151         data: null,
1152         hostname: 'netdata_server', // will be overwritten by the netdata server
1153         categories: new Array(),
1154         categories_idx: {},
1155         families: new Array(),
1156         families_idx: {},
1157
1158         chartsPerRow: 0,
1159         chartsMinWidth: 1450,
1160         chartsHeight: 180,
1161         sparklinesHeight: 60,
1162 };
1163
1164 // generate a sparkline
1165 // used in the documentation
1166 function sparkline(chart, dimension, units) {
1167         var key = chart + '.' + dimension;
1168
1169         if(typeof units === 'undefined')
1170                 units = '';
1171
1172         if(typeof options.sparklines_registry[key] === 'undefined')
1173                 options.sparklines_registry[key] = { count: 1 };
1174         else
1175                 options.sparklines_registry[key].count++;
1176
1177         key = key + '.' + options.sparklines_registry[key].count;
1178
1179         var h = '<div data-netdata="' + chart + '" data-after="-120" data-width="25%" data-height="15px" data-chart-library="dygraph" data-dygraph-theme="sparkline" data-dimensions="' + dimension + '" data-show-value-of-' + dimension + '-at="' + key + '"></div> (<span id="' + key + '" style="display: inline-block; min-width: 50px; text-align: right;">X</span>' + units + ')';
1180
1181         return h;
1182 }
1183
1184 function chartsPerRow(total) {
1185         if(options.chartsPerRow === 0) {
1186                 width = Math.floor(total / options.chartsMinWidth);
1187                 if(width === 0) width = 1;
1188                 return width;
1189         }
1190         else return options.chartsPerRow;
1191 }
1192
1193 function prioritySort(a, b) {
1194         if(a.priority < b.priority) return -1;
1195         if(a.priority > b.priority) return 1;
1196         if(a.name < b.name) return -1;
1197         return 1;
1198 }
1199
1200 function sortObjectByPriority(object) {
1201         var idx = {};
1202         var sorted = new Array();
1203
1204         for(var i in object) {
1205                 if(typeof idx[i] === 'undefined') {
1206                         idx[i] = object[i];
1207                         sorted.push(i);
1208                 }
1209         }
1210
1211         sorted.sort(function(a, b) {
1212                 if(idx[a].priority < idx[b].priority) return -1;
1213                 if(idx[a].priority > idx[b].priority) return 1;
1214                 if(a < b) return -1;
1215                 return 1;
1216         });
1217
1218         return sorted;
1219 }
1220
1221
1222 // ----------------------------------------------------------------------------
1223 // scroll to a section, without changing the browser history
1224
1225 function scrollToId(hash) {
1226         if(hash && hash != '') {
1227                 var offset = $('#' + hash).offset();
1228                 if(typeof offset !== 'undefined')
1229                         $('html, body').animate({ scrollTop: offset.top }, 0);
1230         }
1231
1232         // we must return false to prevent the default action
1233         return false;
1234 }
1235
1236 // ----------------------------------------------------------------------------
1237
1238 function gaugeChart(title, width, dimensions, colors) {
1239         if(typeof colors === 'undefined')
1240                 colors = '';
1241
1242         if(typeof dimensions === 'undefined')
1243                 dimensions = '';
1244
1245         return '<div data-netdata="CHART_UNIQUE_ID"'
1246                                                         + ' data-dimensions="' + dimensions + '"'
1247                                                         + ' data-chart-library="gauge"'
1248                                                         + ' data-gauge-adjust="width"'
1249                                                         + ' data-title="' + title + '"'
1250                                                         + ' data-width="' + width + '"'
1251                                                         + ' data-before="0"'
1252                                                         + ' data-after="-CHART_DURATION"'
1253                                                         + ' data-points="CHART_DURATION"'
1254                                                         + ' data-colors="' + colors + '"'
1255                                                         + ' role="application"></div>';
1256 }
1257
1258 // ----------------------------------------------------------------------------
1259
1260 var menuData = {
1261         'system': {
1262                 title: 'System Overview',
1263                 info: 'Overview of the key system metrics.'
1264         },
1265
1266         'ap': {
1267                 title: 'Access Points',
1268                 info: undefined
1269         },
1270
1271         'tc': {
1272                 title: 'Quality of Service',
1273                 info: 'Netdata collects and visualizes tc class utilization using its <a href="https://github.com/firehol/netdata/blob/master/plugins.d/tc-qos-helper.sh" target="_blank">tc-helper plugin</a>. If you also use <a href="http://firehol.org/#fireqos" target="_blank">FireQOS</a> for setting up QoS, netdata automatically collects interface and class names. If your QoS configuration includes overheads calculation, the values shown here will include these overheads (the total bandwidth for the same interface as reported in the Network Interfaces section, will be lower than the total bandwidth reported here). Also, data collection may have a slight time difference compared to the interface (QoS data collection is implemented with a BASH script, so a shift in data collection of a few milliseconds should be justified).'
1274         },
1275
1276         'net': {
1277                 title: 'Network Interfaces',
1278                 info: 'Per network interface statistics collected from <code>/proc/net/dev</code>.'
1279         },
1280
1281         'ipv4': {
1282                 title: 'IPv4 Networking',
1283                 info: undefined
1284         },
1285
1286         'ipv6': {
1287                 title: 'IPv6 Networking',
1288                 info: undefined
1289         },
1290
1291         'ipvs': {
1292                 title: 'IP Virtual Server',
1293                 info: undefined
1294         },
1295
1296         'netfilter': {
1297                 title: 'Firewall (netfilter)',
1298                 info: undefined
1299         },
1300
1301         'cpu': {
1302                 title: 'CPUs',
1303                 info: undefined
1304         },
1305
1306         'mem': {
1307                 title: 'Memory',
1308                 info: undefined
1309         },
1310
1311         'disk': {
1312                 title: 'Disks',
1313                 info: 'Charts with performance information for all the system disks. Special care has been given to present disk performance metrics in a way compatible with <code>iostat -x</code>. netdata by default prevents rendering performance charts for individual partitions and unmounted virtual disks. Disabled charts can still be enabled by altering the relative settings in the netdata configuration file.'
1314         },
1315
1316         'sensors': {
1317                 title: 'Sensors',
1318                 info: undefined
1319         },
1320
1321         'nfsd': {
1322                 title: 'File Server (nfsd)',
1323                 info: undefined
1324         },
1325
1326         'apps': {
1327                 title: 'Applications',
1328                 info: 'Per application statistics are collected using netdata\'s <code>apps.plugin</code>. This plugin walks through the entire <code>/proc</code> filesystem and aggregates statistics for applications of interest, defined in <code>/etc/netdata/apps_groups.conf</code> (the default is <a href="https://github.com/firehol/netdata/blob/master/conf.d/apps_groups.conf" target="_blank">here</a>). The plugin internally builds a process tree (much like <code>ps fax</code> does), and groups processes together (evaluating both child and parent processes) so that the result is always a chart with a predefined set of dimensions (of course, only application groups found running are reported).<br/><b>IMPORTANT</b>: The values shown here are not 100% accurate. They only include values for the processes running. If an application is spawning children continuously, which are terminated in just a few milliseconds (like shell scripts do), the values reported will be inaccurate. Linux does report the values for the exited children of a process. However, these values are reported to the parent process <b>only when the child exits</b>. If these values, of the exited child processes, were also aggregated in the charts below, the charts would have been full of spikes, presenting unrealistic utilization for each process group. So, we decided to ignore these values and present only the utilization of <b>the currently running processes</b>.',
1329                 height: 1.5
1330         },
1331
1332         'users': {
1333                 title: 'Users',
1334                 info: 'Per user statistics are collected using netdata\'s <code>apps.plugin</code>. This plugin walks through the entire <code>/proc</code> filesystem and aggregates statistics per user.<br/><b>IMPORTANT</b>: The values shown here are not 100% accurate. They only include values for the processes running. If an application is spawning children continuously, which are terminated in just a few milliseconds (like shell scripts do), the values reported will be inaccurate. Linux does report the values for the exited children of a process. However, these values are reported to the parent process <b>only when the child exits</b>. If these values, of the exited child processes, were also aggregated in the charts below, the charts would have been full of spikes, presenting unrealistic utilization for each process group. So, we decided to ignore these values and present only the utilization of <b>the currently running processes</b>.',
1335                 height: 1.5
1336         },
1337
1338         'groups': {
1339                 title: 'User Groups',
1340                 info: 'Per user group statistics are collected using netdata\'s <code>apps.plugin</code>. This plugin walks through the entire <code>/proc</code> filesystem and aggregates statistics per user group.<br/><b>IMPORTANT</b>: The values shown here are not 100% accurate. They only include values for the processes running. If an application is spawning children continuously, which are terminated in just a few milliseconds (like shell scripts do), the values reported will be inaccurate. Linux does report the values for the exited children of a process. However, these values are reported to the parent process <b>only when the child exits</b>. If these values, of the exited child processes, were also aggregated in the charts below, the charts would have been full of spikes, presenting unrealistic utilization for each process group. So, we decided to ignore these values and present only the utilization of <b>the currently running processes</b>.',
1341                 height: 1.5
1342         },
1343
1344         'netdata': {
1345                 title: 'Netdata Monitoring',
1346                 info: undefined
1347         },
1348
1349         'example': {
1350                 title: 'Example Charts',
1351                 info: undefined
1352         },
1353
1354         'cgroup': {
1355                 title: 'Container',
1356                 info: undefined
1357         },
1358
1359         'mysql': {
1360                 title: 'MySQL',
1361                 info: undefined
1362         },
1363
1364         'phpfpm': {
1365                 title: 'PHP-FPM',
1366                 info: undefined,
1367         },
1368
1369         'named': {
1370                 title: 'named',
1371                 info: undefined
1372         }
1373 };
1374
1375 var submenuData = {
1376         'mem.ksm': {
1377                 title: 'Memory Deduper',
1378                 info: 'Kernel Same-page Merging (KSM) performance monitoring, read from several files in <code>/sys/kernel/mm/ksm/</code>. KSM is a memory-saving de-duplication feature in the Linux kernel (since version 2.6.32). The KSM daemon ksmd periodically scans those areas of user memory which have been registered with it, looking for pages of identical content which can be replaced by a single write-protected page (which is automatically copied if a process later wants to update its content). KSM was originally developed for use with KVM (where it was known as Kernel Shared Memory), to fit more virtual machines into physical memory, by sharing the data common between them.  But it can be useful to any application which generates many instances of the same data.'
1379         },
1380
1381         'netfilter.conntrack': {
1382                 title: 'Connection Tracker',
1383                 info: 'Netfilter Connection Tracker performance monitoring, read from <code>/proc/net/stat/nf_conntrack</code>. The connection tracker keeps track of all connections of the machine, inbound and outbound. It works by keeping a database with all open connections, tracking network and address translation and connection expectations.'
1384         },
1385
1386         'netfilter.nfacct': {
1387                 title: 'Bandwidth Accounting',
1388                 info: 'The following information is read using the <code>nfacct.plugin</code>.'
1389         },
1390
1391         'netfilter.synproxy': {
1392                 title: 'DDoS Protection',
1393                 info: 'DDoS Protection performance monitoring read from <code>/proc/net/stat/synproxy</code>. <a href="https://github.com/firehol/firehol/wiki/Working-with-SYNPROXY" target="_blank">SYNPROXY</a> is a TCP SYN packets proxy. It is used to protect any TCP server (like a web server) from SYN floods and similar DDoS attacks. It is a netfilter module, in the Linux kernel (since version 3.12). It is optimized to handle millions of packets per second utilizing all CPUs available without any concurrency locking between the connections. It can be used for any kind of TCP traffic (even encrypted), since it does not interfere with the content itself.'
1394         }
1395 };
1396
1397 var chartData = {
1398         'mysql.net': {
1399                 info: 'The amount of data sent to mysql clients (<strong>out</strong>) and received from mysql clients (<strong>in</strong>).'
1400         },
1401
1402         'mysql.queries': {
1403                 info: 'The number of statements executed by the server.<ul>' +
1404                 '<li><strong>queries</strong> counts the statements executed within stored SQL programs.</li>' +
1405                 '<li><strong>questions</strong> counts the statements sent to the mysql server by mysql clients.</li>' +
1406                 '<li><strong>slow queries</strong> counts the number of statements that took more than <a href="http://dev.mysql.com/doc/refman/5.7/en/server-system-variables.html#sysvar_long_query_time" target="_blank">long_query_time</a> seconds to be executed.' +
1407                 ' For more information about slow queries check the mysql <a href="http://dev.mysql.com/doc/refman/5.7/en/slow-query-log.html" target="_blank">slow query log</a>.</li>' +
1408                 '</ul>'
1409         },
1410
1411         'mysql.handlers': {
1412                 info: 'Usage of the internal handlers of mysql. This chart provides very good insights of what the mysql server is actually doing.' +
1413                 ' (if the chart is not showing all these dimensions it is because they are zero - set <strong>Which dimensions to show?</strong> to <strong>All</strong> from the dashboard settings, to render even the zero values)<ul>' +
1414                 '<li><strong>commit</strong>, the number of internal <a href="http://dev.mysql.com/doc/refman/5.7/en/commit.html" target="_blank">COMMIT</a> statements.</li>' +
1415                 '<li><strong>delete</strong>, the number of times that rows have been deleted from tables.</li>' +
1416                 '<li><strong>prepare</strong>, a counter for the prepare phase of two-phase commit operations.</li>' +
1417                 '<li><strong>read first</strong>, the number of times the first entry in an index was read. A high value suggests that the server is doing a lot of full index scans; e.g. <strong>SELECT col1 FROM foo</strong>, with col1 indexed.</li>' +
1418                 '<li><strong>read key</strong>, the number of requests to read a row based on a key. If this value is high, it is a good indication that your tables are properly indexed for your queries.</li>' +
1419                 '<li><strong>read next</strong>, the number of requests to read the next row in key order. This value is incremented if you are querying an index column with a range constraint or if you are doing an index scan.</li>' +
1420                 '<li><strong>read prev</strong>, the number of requests to read the previous row in key order. This read method is mainly used to optimize <strong>ORDER BY ... DESC</strong>.</li>' +
1421                 '<li><strong>read rnd</strong>, the number of requests to read a row based on a fixed position. A high value indicates you are doing a lot of queries that require sorting of the result. You probably have a lot of queries that require MySQL to scan entire tables or you have joins that do not use keys properly.</li>' +
1422                 '<li><strong>read rnd next</strong>, the number of requests to read the next row in the data file. This value is high if you are doing a lot of table scans. Generally this suggests that your tables are not properly indexed or that your queries are not written to take advantage of the indexes you have.</li>' +
1423                 '<li><strong>rollback</strong>, the number of requests for a storage engine to perform a rollback operation.</li>' +
1424                 '<li><strong>savepoint</strong>, the number of requests for a storage engine to place a savepoint.</li>' +
1425                 '<li><strong>savepoint rollback</strong>, the number of requests for a storage engine to roll back to a savepoint.</li>' +
1426                 '<li><strong>update</strong>, the number of requests to update a row in a table.</li>' +
1427                 '<li><strong>write</strong>, the number of requests to insert a row in a table.</li>' +
1428                 '</ul>'
1429         },
1430
1431         'mysql.table_locks': {
1432                 info: 'MySQL table locks counters: <ul>' +
1433                 '<li><strong>immediate</strong>, the number of times that a request for a table lock could be granted immediately.</li>' +
1434                 '<li><strong>waited</strong>, the number of times that a request for a table lock could not be granted immediately and a wait was needed. If this is high and you have performance problems, you should first optimize your queries, and then either split your table or tables or use replication.</li>' +
1435                 '</ul>'
1436         },
1437
1438         'system.cpu': {
1439                 info: 'Total CPU utilization (all cores). 100% here means there is no CPU idle time at all. You can get per core usage at the <a href="#cpu">CPUs</a> section and per application usage at the <a href="#apps">Applications Monitoring</a> section.<br/>Keep an eye on <b>iowait</b> ' + sparkline('system.cpu', 'iowait', '%') + '. If it is constantly high, your disks are a bottleneck and they slow your system down.<br/>Another important metric worth monitoring, is <b>softirq</b> ' + sparkline('system.cpu', 'softirq', '%') + '. A constantly high percentage of softirq may indicate network drivers issues.'
1440         },
1441
1442         'system.load': {
1443                 info: 'Current system load read from <code>/proc/loadavg</code>.',
1444                 height: 0.7
1445         },
1446
1447         'system.io': {
1448                 info: 'Total Disk I/O, for all disks, read from <code>/proc/vmstat</code>. You can get detailed information about each disk at the <a href="#disk">Disks</a> section and per application Disk usage at the <a href="#apps">Applications Monitoring</a> section.'
1449         },
1450
1451         'system.swapio': {
1452                 info: 'Total Swap I/O, read from <code>/proc/vmstat</code>. (netdata measures both <code>in</code> and <code>out</code>. If either of them is not shown in the chart, it is because it is zero - you can change the page settings to always render all the available dimensions on all charts).'
1453         },
1454
1455         'system.pgfaults': {
1456                 info: 'Total page faults, read from <code>/proc/vmstat</code>. <b>Major page faults</b> indicates that the system is using its swap. You can find which applications use the swap at the <a href="#apps">Applications Monitoring</a> section.'
1457         },
1458
1459         'system.entropy': {
1460                 colors: '#CC22AA',
1461                 info: '<a href="https://en.wikipedia.org/wiki/Entropy_(computing)" target="_blank">Entropy</a>, read from <code>/proc/sys/kernel/random/entropy_avail</code>, is like a pool of random numbers that are mainly used in cryptography. It is advised that the pool remains always <a href="https://blog.cloudflare.com/ensuring-randomness-with-linuxs-random-number-generator/" target="_blank">above 200</a>. If the pool of entropy gets empty, you risk your security to be predictable and you should install a user-space random numbers generating daemon, like <a href="http://www.issihosts.com/haveged/" target="_blank">haveged</a>, to keep the pool in healthy levels.'
1462         },
1463
1464         'system.forks': {
1465                 colors: '#5555DD',
1466                 info: 'The number of new processes created per second, read from <code>/proc/stat</code>.'
1467         },
1468
1469         'system.intr': {
1470                 colors: '#DD5555',
1471                 info: 'Total number of CPU interrupts, read from <code>/proc/stat</code>. Check <code>system.interrupts</code> that gives more detail about each interrupt and also the <a href="#cpu">CPUs</a> section where interrupts are analyzed per CPU core.'
1472         },
1473
1474         'system.interrupts': {
1475                 info: 'CPU interrupts in detail, read from <code>/proc/interrupts</code>. At the <a href="#cpu">CPUs</a> section, interrupts are analyzed per CPU core.'
1476         },
1477
1478         'system.softirqs': {
1479                 info: 'CPU softirqs in detail, read from <code>/proc/softirqs</code>. At the <a href="#cpu">CPUs</a> section, softirqs are analyzed per CPU core.'
1480         },
1481
1482         'system.processes': {
1483                 info: 'System processes, read from <code>/proc/stat</code>. <b>Blocked</b> are processes that are willing to execute but they cannot, e.g. because they wait for disk activity.'
1484         },
1485
1486         'system.active_processes': {
1487                 info: 'All system active processes, read from <code>/proc/loadavg</code>.'
1488         },
1489
1490         'system.ctxt': {
1491                 info: '<a href="https://en.wikipedia.org/wiki/Context_switch" target="_blank">Context Switches</a>, read from <code>/proc/stat</code>, is the switching of the CPU from one process, task or thread to another. If there are many processes or threads willing to execute and very few CPU cores available to handle them, the system is making more context switching to balance the CPU resources among them. The whole process is computationally intensive. The more the context switches, the slower the system gets.'
1492         },
1493
1494         'system.idlejitter': {
1495                 colors: '#5555AA',
1496                 info: 'Idle jitter is calculated by netdata. A thread is spawned that requests to sleep for a few microseconds. When the system wakes it up, it measures how many microseconds have passed. The difference between the requested and the actual duration of the sleep, is the <b>idle jitter</b>. This number is useful in real-time environments, where CPU jitter can affect the quality of the service (like VoIP media gateways).'
1497         },
1498
1499         'system.ipv4': {
1500                 info: 'Total IPv4 Traffic, read from <code>/proc/net/netstat</code>.'
1501         },
1502
1503         'system.ipv6': {
1504                 info: 'Total IPv6 Traffic, read from <code>/proc/net/snmp6</code>.'
1505         },
1506
1507         'system.ram': {
1508                 info: 'System memory, read from <code>/proc/meminfo</code>.'
1509         },
1510
1511         'system.swap': {
1512                 info: 'System swap memory, read from <code>/proc/meminfo</code>.'
1513         },
1514
1515         'mem.ksm_savings': {
1516                 heads: [
1517                         gaugeChart('Saved', '12%', 'savings', '#0099CC')
1518                 ]
1519         },
1520
1521         'mem.ksm_ratios': {
1522                 heads: [
1523                         function(id) {
1524                                 return  '<div data-netdata="' + id + '"'
1525                                         + ' data-gauge-max-value="100"'
1526                                         + ' data-chart-library="gauge"'
1527                                         + ' data-title="Savings"'
1528                                         + ' data-units="percentage %"'
1529                                         + ' data-gauge-adjust="width"'
1530                                         + ' data-width="12%"'
1531                                         + ' data-before="0"'
1532                                         + ' data-after="-CHART_DURATION"'
1533                                         + ' data-points="CHART_DURATION"'
1534                                         + ' role="application"></div>';
1535                         }
1536                 ]
1537         },
1538
1539         'mem.committed': {
1540                 colors: NETDATA.colors[3]
1541         },
1542
1543         'apps.cpu': {
1544                 height: 2.0
1545         },
1546
1547         'apps.preads': {
1548                 height: 2.0
1549         },
1550
1551         'apps.pwrites': {
1552                 height: 2.0
1553         },
1554
1555         'users.cpu': {
1556                 height: 2.0
1557         },
1558
1559         'users.preads': {
1560                 height: 2.0
1561         },
1562
1563         'users.pwrites': {
1564                 height: 2.0
1565         },
1566
1567         'groups.cpu': {
1568                 height: 2.0
1569         },
1570
1571         'groups.preads': {
1572                 height: 2.0
1573         },
1574
1575         'groups.pwrites': {
1576                 height: 2.0
1577         },
1578
1579         'tc.qos': {
1580                 heads: [
1581                         function(id) {
1582                                 if(id.match(/.*-ifb$/))
1583                                         return gaugeChart('Inbound', '12%', '', '#5555AA');
1584                                 else
1585                                         return gaugeChart('Outbound', '12%', '', '#AA9900');
1586                         }
1587                 ]
1588         },
1589
1590         'net.net': {
1591                 heads: [
1592                         gaugeChart('Received', '12%', 'received'),
1593                         gaugeChart('Sent', '12%', 'sent')
1594                 ]
1595         },
1596
1597         'disk.util': {
1598                 colors: '#FF5588',
1599                 heads: [
1600                         gaugeChart('Utilization', '12%', '', '#FF5588')
1601                 ],
1602                 info: 'Disk Utilization measures the amount of time the disk was busy with something. This is not related to its performance. 100% means that the Linux kernel always had an outstanding operation on the disk. Keep in mind that depending on the underlying technology of the disk, 100% here may or may not be an indication of congestion.'
1603         },
1604
1605         'disk.backlog': {
1606                 colors: '#0099CC',
1607                 info: 'Backlog is an indication of the duration of pending disk operations. On every I/O event the Linux kernel is multiplying the time spent doing I/O since the last update of this field with the number of pending operations. While not accurate, this metric can provide an indication of the expected completion time of the operations in progress.'
1608         },
1609
1610         'disk.io': {
1611                 heads: [
1612                         gaugeChart('Read', '12%', 'reads'),
1613                         gaugeChart('Write', '12%', 'writes')
1614                 ],
1615                 info: 'Amount of data transferred to and from disk.'
1616         },
1617
1618         'disk.ops': {
1619                 info: 'Completed disk I/O operations. Keep in mind the number of operations requested might be higher, since the Linux kernel is able to merge adjacent to each other (see merged operations chart).'
1620         },
1621
1622         'disk.qops': {
1623                 info: 'I/O operations currently in progress. This metric is a snapshot - it is not an average over the last interval.'
1624         },
1625
1626         'netfilter.sockets': {
1627                 colors: '#88AA00',
1628                 heads: [
1629                         gaugeChart('Active Connections', '12%', '', '#88AA00')
1630                 ]
1631         },
1632
1633         'netfilter.new': {
1634                 heads: [
1635                         gaugeChart('New Connections', '12%', 'new', '#5555AA')
1636                 ]
1637         },
1638
1639         'disk.iotime': {
1640                 height: 0.5,
1641                 info: 'The sum of the duration of all completed I/O operations. This number can exceed the interval if the disk is able to execute I/O operations in parallel.'
1642         },
1643         'disk.mops': {
1644                 height: 0.5,
1645                 info: 'The number of merged disk operations. The Linux kernel is able to merge adjacent I/O operations, for example two 4KB reads can become one 8KB read before given to disk.'
1646         },
1647         'disk.svctm': {
1648                 height: 0.5,
1649                 info: 'The average service time for completed I/O operations. This metric is calculated using the total busy time of the disk and the number of completed operations. If the disk is able to execute multiple parallel operations the reporting average service time will be misleading.'
1650         },
1651         'disk.avgsz': {
1652                 height: 0.5,
1653                 info: 'The average I/O operation size.'
1654         },
1655         'disk.await': {
1656                 height: 0.5,
1657                 info: 'The average time for I/O requests issued to the device to be served. This includes the time spent by the requests in queue and the time spent servicing them.'
1658         },
1659
1660         'disk.space': {
1661                 info: 'Disk space utilization. reserved for root is automatically reserved by the system to prevent the root user from getting out of space.'
1662         },
1663         'disk.inodes': {
1664                 info: 'inodes (or index nodes) are filesystem objects (e.g. files and directories). On many types of file system implementations, the maximum number of inodes is fixed at filesystem creation, limiting the maximum number of files the filesystem can hold. It is possible for a device to run out of inodes. When this happens, new files cannot be created on the device, even though there may be free space available.'
1665         },
1666         'apache.connections': {
1667                 colors: NETDATA.colors[4],
1668                 mainheads: [
1669                         gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1670                 ]
1671         },
1672
1673         'apache.requests': {
1674                 colors: NETDATA.colors[0],
1675                 mainheads: [
1676                         gaugeChart('Connections', '12%', '', NETDATA.colors[0])
1677                 ]
1678         },
1679
1680         'apache.net': {
1681                 colors: NETDATA.colors[3],
1682                 mainheads: [
1683                         gaugeChart('Bandwidth', '12%', '', NETDATA.colors[3])
1684                 ]
1685         },
1686
1687         'apache.workers': {
1688                 mainheads: [
1689                         function(id) {
1690                                 return  '<div data-netdata="' + id + '"'
1691                                         + ' data-dimensions="busy"'
1692                                         + ' data-append-options="percentage"'
1693                                         + ' data-gauge-max-value="100"'
1694                                         + ' data-chart-library="gauge"'
1695                                         + ' data-title="Workers Utilization"'
1696                                         + ' data-units="percentage %"'
1697                                         + ' data-gauge-adjust="width"'
1698                                         + ' data-width="12%"'
1699                                         + ' data-before="0"'
1700                                         + ' data-after="-CHART_DURATION"'
1701                                         + ' data-points="CHART_DURATION"'
1702                                         + ' role="application"></div>';
1703                         }
1704                 ]
1705         },
1706
1707         'apache.bytesperreq': {
1708                 colors: NETDATA.colors[3],
1709                 height: 0.5
1710         },
1711
1712         'apache.reqpersec': {
1713                 colors: NETDATA.colors[4],
1714                 height: 0.5
1715         },
1716
1717         'apache.bytespersec': {
1718                 colors: NETDATA.colors[6],
1719                 height: 0.5
1720         },
1721
1722         'nginx.connections': {
1723                 colors: NETDATA.colors[4],
1724                 mainheads: [
1725                         gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1726                 ]
1727         },
1728
1729         'nginx.requests': {
1730                 colors: NETDATA.colors[0],
1731                 mainheads: [
1732                         gaugeChart('Requests', '12%', '', NETDATA.colors[0])
1733                 ]
1734         }
1735 };
1736
1737 function anyAttribute(obj, attr, key, def) {
1738         if(typeof obj[key] !== 'undefined') {
1739                 if(typeof obj[key][attr] !== 'undefined')
1740                         return obj[key][attr];
1741         }
1742         return def;
1743 }
1744
1745 function menuTitle(chart) {
1746         if(typeof chart.menu_pattern !== 'undefined') {
1747                 return anyAttribute(menuData, 'title', chart.menu_pattern, chart.menu_pattern).toString()
1748                                 + ': ' + chart.type.slice(-(chart.type.length - chart.menu_pattern.length - 1)).toString();
1749         }
1750
1751         return anyAttribute(menuData, 'title', chart.menu, chart.menu);
1752 }
1753
1754 function menuInfo(menu) {
1755         return anyAttribute(menuData, 'info', menu, null);
1756 }
1757
1758 function menuHeight(menu, relative) {
1759         return anyAttribute(menuData, 'height', menu, 1.0) * relative;
1760 }
1761
1762 function submenuTitle(menu, submenu) {
1763         var key = menu + '.' + submenu;
1764         return anyAttribute(submenuData, 'title', key, submenu);
1765 }
1766
1767 function submenuInfo(menu, submenu) {
1768         var key = menu + '.' + submenu;
1769         return anyAttribute(submenuData, 'info', key, null);
1770 }
1771
1772 function submenuHeight(menu, submenu, relative) {
1773         var key = menu + '.' + submenu;
1774         return anyAttribute(submenuData, 'height', key, 1.0) * relative;
1775 }
1776
1777
1778 function chartInfo(id) {
1779         if(typeof chartData[id] !== 'undefined' && typeof chartData[id].info !== 'undefined')
1780                 return '<div class="chart-message netdata-chart-alignment" role="document">' + chartData[id].info + '</div>';
1781         else
1782                 return '';
1783 }
1784
1785 function chartHeight(id, def) {
1786         if(typeof chartData[id] !== 'undefined' && typeof chartData[id].height !== 'undefined')
1787                 return def * chartData[id].height;
1788         else
1789                 return def;
1790 }
1791
1792
1793 // ----------------------------------------------------------------------------
1794
1795 // enrich the data structure returned by netdata
1796 // to reflect our menu system and content
1797 function enrichChartData(chart) {
1798         var tmp = chart.type.split('_')[0];
1799
1800         switch(tmp) {
1801                 case 'ap':
1802                 case 'net':
1803                 case 'disk':
1804                         chart.menu = tmp;
1805                         break;
1806
1807                 case 'mysql':
1808                 case 'phpfpm':
1809                 case 'named':
1810                 case 'cgroup':
1811                         chart.menu = chart.type;
1812                         chart.menu_pattern = tmp;
1813                         break;
1814
1815                 case 'tc':
1816                         chart.menu = tmp;
1817
1818                         // find a name for this device from fireqos info
1819                         // we strip '_(in|out)' or '(in|out)_'
1820                         if(typeof options.submenu_names[chart.family] === 'undefined' || options.submenu_names[chart.family] === chart.family) {
1821                                 var n = chart.name.split('.')[1];
1822                                 if(n.endsWith('_in'))
1823                                         options.submenu_names[chart.family] = n.slice(0, n.lastIndexOf('_in'));
1824                                 else if(n.endsWith('_out'))
1825                                         options.submenu_names[chart.family] = n.slice(0, n.lastIndexOf('_out'));
1826                                 else if(n.startsWith('in_'))
1827                                         options.submenu_names[chart.family] = n.slice(3, n.length);
1828                                 else if(n.startsWith('out_'))
1829                                         options.submenu_names[chart.family] = n.slice(4, n.length);
1830                         }
1831
1832                         // increase the priority of IFB devices
1833                         // to have inbound appear before outbound
1834                         if(chart.id.match(/.*-ifb$/))
1835                                 chart.priority--;
1836
1837                         break;
1838
1839                 default:
1840                         chart.menu = chart.type;
1841                         break;
1842         }
1843
1844         chart.submenu = chart.family;
1845 }
1846
1847 // ----------------------------------------------------------------------------
1848
1849 function name2id(s) {
1850         return s
1851                 .replace(/ /g, '_')
1852                 .replace(/\(/g, '_')
1853                 .replace(/\)/g, '_')
1854                 .replace(/\./g, '_')
1855                 .replace(/\//g, '_');
1856 }
1857
1858 function headMain(charts, duration) {
1859         var head = '';
1860
1861         if(typeof charts['system.swap'] !== 'undefined')
1862                 head += '<div style="margin-right: 10px;" data-netdata="system.swap"'
1863                 + ' data-dimensions="free"'
1864                 + ' data-append-options="percentage"'
1865                 + ' data-chart-library="easypiechart"'
1866                 + ' data-title="Free Swap"'
1867                 + ' data-units="%"'
1868                 + ' data-easypiechart-max-value="100"'
1869                 + ' data-width="8%"'
1870                 + ' data-before="0"'
1871                 + ' data-after="-' + duration.toString() + '"'
1872                 + ' data-points="' + duration.toString() + '"'
1873                 + ' data-colors="#DD4400"'
1874                 + ' role="application"></div>';
1875
1876         if(typeof charts['system.io'] !== 'undefined') {
1877                 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1878                 + ' data-dimensions="in"'
1879                 + ' data-chart-library="easypiechart"'
1880                 + ' data-title="Disk Read"'
1881                 + ' data-units="KB / s"'
1882                 + ' data-width="10%"'
1883                 + ' data-before="0"'
1884                 + ' data-after="-' + duration.toString() + '"'
1885                 + ' data-points="' + duration.toString() + '"'
1886                 + ' role="application"></div>';
1887
1888                 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1889                 + ' data-dimensions="out"'
1890                 + ' data-chart-library="easypiechart"'
1891                 + ' data-title="Disk Write"'
1892                 + ' data-units="KB / s"'
1893                 + ' data-width="10%"'
1894                 + ' data-before="0"'
1895                 + ' data-after="-' + duration.toString() + '"'
1896                 + ' data-points="' + duration.toString() + '"'
1897                 + ' role="application"></div>';
1898         }
1899
1900         if(typeof charts['system.cpu'] !== 'undefined')
1901                 head += '<div data-netdata="system.cpu"'
1902                 + ' data-chart-library="gauge"'
1903                 + ' data-title="CPU"'
1904                 + ' data-units="%"'
1905                 + ' data-gauge-max-value="100"'
1906                 + ' data-width="18%"'
1907                 + ' data-after="-' + duration.toString() + '"'
1908                 + ' data-points="' + duration.toString() + '"'
1909                 + ' data-colors="' + NETDATA.colors[12] + '"'
1910                 + ' role="application"></div>';
1911
1912         if(typeof charts['system.ipv4'] !== 'undefined') {
1913                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1914                 + ' data-dimensions="received"'
1915                 + ' data-chart-library="easypiechart"'
1916                 + ' data-title="IPv4 Inbound"'
1917                 + ' data-units="kbps"'
1918                 + ' data-width="10%"'
1919                 + ' data-before="0"'
1920                 + ' data-after="-' + duration.toString() + '"'
1921                 + ' data-points="' + duration.toString() + '"'
1922                 + ' role="application"></div>';
1923
1924                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1925                 + ' data-dimensions="sent"'
1926                 + ' data-chart-library="easypiechart"'
1927                 + ' data-title="IPv4 Outbound"'
1928                 + ' data-units="kbps"'
1929                 + ' data-width="10%"'
1930                 + ' data-before="0"'
1931                 + ' data-after="-' + duration.toString() + '"'
1932                 + ' data-points="' + duration.toString() + '"'
1933                 + ' role="application"></div>';
1934         }
1935         else if(typeof charts['system.ipv6'] !== 'undefined') {
1936                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv6"'
1937                 + ' data-dimensions="received"'
1938                 + ' data-chart-library="easypiechart"'
1939                 + ' data-title="IPv6 Inbound"'
1940                 + ' data-units="kbps"'
1941                 + ' data-width="10%"'
1942                 + ' data-before="0"'
1943                 + ' data-after="-' + duration.toString() + '"'
1944                 + ' data-points="' + duration.toString() + '"'
1945                 + ' role="application"></div>';
1946
1947                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv6"'
1948                 + ' data-dimensions="sent"'
1949                 + ' data-chart-library="easypiechart"'
1950                 + ' data-title="IPv6 Outbound"'
1951                 + ' data-units="kbps"'
1952                 + ' data-width="10%"'
1953                 + ' data-before="0"'
1954                 + ' data-after="-' + duration.toString() + '"'
1955                 + ' data-points="' + duration.toString() + '"'
1956                 + ' role="application"></div>';
1957         }
1958
1959         if(typeof charts['system.ram'] !== 'undefined')
1960                 head += '<div style="margin-right: 10px;" data-netdata="system.ram"'
1961                 + ' data-dimensions="cached|free"'
1962                 + ' data-append-options="percentage"'
1963                 + ' data-chart-library="easypiechart"'
1964                 + ' data-title="Available RAM"'
1965                 + ' data-units="%"'
1966                 + ' data-easypiechart-max-value="100"'
1967                 + ' data-width="8%"'
1968                 + ' data-after="-' + duration.toString() + '"'
1969                 + ' data-points="' + duration.toString() + '"'
1970                 + ' data-colors="' + NETDATA.colors[7] + '"'
1971                 + ' role="application"></div>';
1972
1973         return head;
1974 }
1975
1976 function generateHeadCharts(type, chart, duration) {
1977         var head = '';
1978         var hcharts = anyAttribute(chartData, type, chart.context, []);
1979         if(hcharts.length > 0) {
1980                 var hi = 0, hlen = hcharts.length;
1981                 while(hi < hlen) {
1982                         if(typeof hcharts[hi] === 'function')
1983                                 head += hcharts[hi](chart.id).replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
1984                         else
1985                                 head += hcharts[hi].replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
1986                         hi++;
1987                 }
1988         }
1989         return head;
1990 }
1991
1992 function renderPage(menus, data) {
1993         var div = document.getElementById('charts_div');
1994         var pcent_width = Math.floor(100 / chartsPerRow($(div).width()));
1995
1996         // find the proper duration for per-second updates
1997         var duration = Math.round(($(div).width() * pcent_width / 100 * data.update_every / 3) / 60) * 60;
1998         var html = '';
1999         var sidebar = '<ul class="nav dashboard-sidenav" data-spy="affix" id="sidebar_ul">';
2000         var mainhead = headMain(data.charts, duration);
2001
2002         // sort the menus
2003         var main = sortObjectByPriority(menus);
2004         var i = 0, len = main.length;
2005         while(i < len) {
2006                 var menu = main[i++];
2007
2008                 // generate an entry at the main menu
2009
2010                 var menuid = name2id(menu);
2011                 sidebar += '<li class=""><a href="#' + menuid + '" onClick="return scrollToId(\'' + menuid + '\');">' + menus[menu].title + '</a><ul class="nav">';
2012                 html += '<div role="section"><div role="sectionhead"><h1 id="' + menuid + '" role="heading">' + menus[menu].title + '</h1></div><div id="menu_' + menuid + '" role="document">';
2013
2014                 if(menus[menu].info !== null)
2015                         html += menus[menu].info;
2016
2017                 // console.log(' >> ' + menu + ' (' + menus[menu].priority + '): ' + menus[menu].title);
2018
2019                 var shtml = '';
2020                 var mhead = '<div class="netdata-chart-row">' + mainhead;
2021                 mainhead = '';
2022
2023                 // sort the submenus of this menu
2024                 var sub = sortObjectByPriority(menus[menu].submenus);
2025                 var si = 0, slen = sub.length;
2026                 while(si < slen) {
2027                         var submenu = sub[si++];
2028
2029                         // generate an entry at the submenu
2030                         var submenuid = name2id(menu + '_' + submenu);
2031                         sidebar += '<li class><a href="#' + submenuid + '" onClick="return scrollToId(\'' + submenuid + '\');">' + menus[menu].submenus[submenu].title + '</a></li>';
2032                         shtml += '<div class="netdata-group-container" id="submenu_' + submenuid + '" style="display: inline-block; width: ' + pcent_width.toString() + '%"><h2 id="' + submenuid + '" class="netdata-chart-alignment" role="heading">' + menus[menu].submenus[submenu].title + '</h2>';
2033
2034                         if(menus[menu].submenus[submenu].info !== null)
2035                                 shtml += '<div class="chart-message netdata-chart-alignment" role="document">' + menus[menu].submenus[submenu].info + '</div>';
2036
2037                         var head = '<div class="netdata-chart-row">';
2038                         var chtml = '';
2039
2040                         // console.log('    \------- ' + submenu + ' (' + menus[menu].submenus[submenu].priority + '): ' + menus[menu].submenus[submenu].title);
2041
2042                         // sort the charts in this submenu of this menu
2043                         menus[menu].submenus[submenu].charts.sort(prioritySort);
2044                         var ci = 0, clen = menus[menu].submenus[submenu].charts.length;
2045                         while(ci < clen) {
2046                                 var chart = menus[menu].submenus[submenu].charts[ci++];
2047
2048                                 // generate the submenu heading charts
2049                                 mhead += generateHeadCharts('mainheads', chart, duration);
2050                                 head += generateHeadCharts('heads', chart, duration);
2051
2052                                 // generate the chart
2053                                 chtml += chartInfo(chart.context) + '<div data-netdata="' + chart.id + '"'
2054                                         + ' data-width="' + pcent_width.toString() + '%"'
2055                                         + ' data-height="' + chartHeight(chart.context, options.chartsHeight).toString() + 'px"'
2056                                         + ' data-before="0"'
2057                                         + ' data-after="-' + duration.toString() + '"'
2058                                         + ' data-id="' + name2id(options.hostname + '/' + chart.id) + '"'
2059                                         + ' data-colors="' + anyAttribute(chartData, 'colors', chart.context, '') + '"'
2060                                         + ' role="application"></div>';
2061
2062                                 // console.log('         \------- ' + chart.id + ' (' + chart.priority + '): ' + chart.context  + ' height: ' + menus[menu].submenus[submenu].height);
2063                         }
2064
2065                         head += '</div>';
2066                         shtml += head + chtml + '</div>';
2067                 }
2068
2069                 mhead += '</div>';
2070                 sidebar += '</ul></li>';
2071                 html += mhead + shtml + '</div></div><hr role="separator"/>';
2072         }
2073
2074         sidebar += '</ul>';
2075         div.innerHTML = html;
2076         document.getElementById('sidebar').innerHTML = sidebar;
2077         finalizePage();
2078 }
2079
2080 function renderChartsAndMenu(data) {
2081         var menus = {};
2082         var charts = data.charts;
2083
2084         for(var c in charts) {
2085                 enrichChartData(charts[c]);
2086
2087                 // create the menu
2088                 if(typeof menus[charts[c].menu] === 'undefined') {
2089                         menus[charts[c].menu] = {
2090                                 priority: charts[c].priority,
2091                                 submenus: {},
2092                                 title: menuTitle(charts[c]),
2093                                 info: menuInfo(charts[c].menu),
2094                                 height: menuHeight(charts[c].menu, options.chartsHeight)
2095                         };
2096                 }
2097
2098                 if(charts[c].priority < menus[charts[c].menu].priority)
2099                         menus[charts[c].menu].priority = charts[c].priority;
2100
2101                 // create the submenu
2102                 if(typeof menus[charts[c].menu].submenus[charts[c].submenu] === 'undefined') {
2103                         menus[charts[c].menu].submenus[charts[c].submenu] = {
2104                                 priority: charts[c].priority,
2105                                 charts: new Array(),
2106                                 title: null,
2107                                 info: submenuInfo(charts[c].menu, charts[c].submenu),
2108                                 height: submenuHeight(charts[c].menu, charts[c].submenu, menus[charts[c].menu].height)
2109                         };
2110                 }
2111
2112                 if(charts[c].priority < menus[charts[c].menu].submenus[charts[c].submenu].priority)
2113                         menus[charts[c].menu].submenus[charts[c].submenu].priority = charts[c].priority;
2114
2115                 // index the chart in the menu/submenu
2116                 menus[charts[c].menu].submenus[charts[c].submenu].charts.push(charts[c]);
2117         }
2118
2119         // propagate the descriptive subname given to QoS
2120         // to all the other submenus with the same name
2121         for(var m in menus) {
2122                 for(var s in menus[m].submenus) {
2123                         // set the family using a name
2124                         if(typeof options.submenu_names[s] !== 'undefined') {
2125                                 menus[m].submenus[s].title = s + ' (' + options.submenu_names[s] + ')';
2126                         }
2127                         else {
2128                                 menus[m].submenus[s].title = submenuTitle(m, s);
2129                         }
2130                 }
2131         }
2132
2133         renderPage(menus, data);
2134 }
2135
2136 function downloadAllCharts(netdata_url) {
2137         if(typeof netdata_url === 'undefined' || netdata_url === null)
2138                 netdata_url = NETDATA.serverDefault;
2139
2140         NETDATA.pause(function() {
2141
2142                 // download all the charts the server knows
2143                 NETDATA.chartRegistry.downloadAll(netdata_url, function(data) {
2144
2145                         options.data = data;
2146                         options.hostname = data.hostname;
2147                         document.getElementById('hostname').innerHTML = options.hostname;
2148                         document.getElementById('hostname').href = NETDATA.serverDefault;
2149                         document.title = options.hostname + ' netdata dashboard';
2150
2151                         renderChartsAndMenu(data);
2152
2153                         // prepare our DOM
2154 //                      prepareScreen(data);
2155
2156                         // due to affix issues, prepareScreen() will unpause
2157                         // netdata as needed
2158                 });
2159         });
2160 }
2161
2162 // ----------------------------------------------------------------------------
2163
2164 function versionLog(msg) {
2165         document.getElementById('versionCheckLog').innerHTML = msg;
2166 }
2167
2168 function getNetdataVersion(callback) {
2169         versionLog('Downloading installed version info from netdata...');
2170
2171         $.ajax({
2172                 url: 'version.txt',
2173                 async: true,
2174                 cache: false
2175         })
2176         .done(function(data) {
2177                 data = data.replace(/(\r\n|\n|\r| |\t)/gm,"");
2178                 if(data.length !== 40) {
2179                         versionLog('Received version string is invalid.');
2180                         callback(null);
2181                 }
2182                 else {
2183                         versionLog('Installed version of netdata is ' + data);
2184                         document.getElementById('netdataVersion').innerHTML = data;
2185                         callback(data);
2186                 }
2187         })
2188         .fail(function() {
2189                 versionLog('Failed to download installed version info from netdata!');
2190                 callback(null);
2191         });
2192 }
2193
2194 function getGithubLatestCommit(callback) {
2195         versionLog('Downloading latest version info from github...');
2196
2197         $.ajax({
2198                 url: 'https://api.github.com/repos/firehol/netdata/commits',
2199                 async: true,
2200                 cache: false
2201         })
2202         .done(function(data) {
2203                 versionLog('Latest version info from github is ' + data[0].sha);
2204                 callback(data[0].sha);
2205         })
2206         .fail(function() {
2207                 versionLog('Failed to download installed version info from github!');
2208                 callback(null);
2209         });
2210 }
2211
2212 function checkForUpdate(callback) {
2213         getNetdataVersion(function(sha1) {
2214                 if(sha1 === null) callback(null, null);
2215
2216                 getGithubLatestCommit(function(sha2) {
2217                         callback(sha1, sha2);
2218                 });
2219         });
2220
2221         return null;
2222 }
2223
2224 var updateBlinkCounter = 0;
2225 function notifyForUpdate(force) {
2226         versionLog('<p>checking for updates...</p>');
2227
2228         var now = new Date().getTime();
2229
2230         if(typeof force === 'undefined' || force !== true) {
2231                 var last = loadLocalStorage('last_update_check');
2232
2233                 if(typeof last === 'string')
2234                         last = parseInt(last);
2235                 else
2236                         last = 0;
2237
2238                 if(now - last < 3600000 * 8) {
2239                         // no need to check it - too soon
2240                         return;
2241                 }
2242         }
2243
2244         checkForUpdate(function(sha1, sha2) {
2245                 var save = false;
2246
2247                 if(sha1 === null) {
2248                         save = false;
2249                         versionLog('<p><big>Failed to get your netdata version!</big></p><p>You can always get the latest version of netdata from <a href="https://github.com/firehol/netdata" target="_blank">its github page</a>.</p>');
2250                 }
2251                 else if(sha2 === null) {
2252                         save = false;
2253                         versionLog('<p><big>Failed to get the latest version from github.</big></p><p>You can always get the latest version of netdata from <a href="https://github.com/firehol/netdata" target="_blank">its github page</a>.</p>');
2254                 }
2255                 else if(sha1 === sha2) {
2256                         save = true;
2257                         versionLog('<p><big>You already have the latest version of netdata!</big></p><p>No update yet?<br/>Probably, we need some motivation to keep going on!</p><p>If you haven\'t already, <a href="https://github.com/firehol/netdata" target="_blank">give netdata a <b>Star</b> at its github page</a>.</p>');
2258                 }
2259                 else {
2260                         save = true;
2261                         var compare = 'https://github.com/firehol/netdata/compare/' + sha1.toString() + '...' + sha2.toString();
2262
2263                         versionLog('<p><big><strong>New version of netdata available!</strong></big></p><p>Latest version: ' + sha2.toString() + '</p><p><a href="' + compare + '" target="_blank">Click here for the changes log</a> since your installed version, and<br/><a href="https://github.com/firehol/netdata/wiki/Updating-Netdata" target="_blank">click here for directions on updating</a> your netdata installation.</p><p>We suggest to review the changes log for new features you may be interested, or important bug fixes you may need.<br/>Keeping your netdata updated, is generally a good idea.</p>');
2264
2265                         function updateButtonBlink() {
2266                                 updateBlinkCounter--;
2267                                 if(updateBlinkCounter > 0)
2268                                         $('#updateButton').fadeOut(500).fadeIn(500, updateButtonBlink);
2269                         }
2270
2271                         if(updateBlinkCounter === 0) {
2272                                 updateBlinkCounter = 300;
2273                                 updateButtonBlink();
2274                         }
2275                 }
2276
2277                 if(save)
2278                         saveLocalStorage('last_update_check', now.toString());
2279         });
2280 }
2281
2282 // ----------------------------------------------------------------------------
2283
2284 function getUrlParameter(sParam) {
2285     var sPageURL = decodeURIComponent(window.location.search.substring(1)),
2286         sURLVariables = sPageURL.split('&'),
2287         sParameterName,
2288         i;
2289
2290     for (i = 0; i < sURLVariables.length; i++) {
2291         sParameterName = sURLVariables[i].split('=');
2292
2293         if (sParameterName[0] === sParam) {
2294             return sParameterName[1] === undefined ? true : sParameterName[1];
2295         }
2296     }
2297 }
2298
2299 function finalizePage() {
2300         // resize all charts - without starting the background thread
2301         // this has to be done while NETDATA is paused
2302         // if we ommit this, the affix menu will be wrong, since all
2303         // the Dom elements are initially zero-sized
2304         NETDATA.parseDom();
2305
2306         var before = 0, after = 0, nowelcome = 0;
2307         after = getUrlParameter('force_after_ms');
2308         before = getUrlParameter('force_before_ms');
2309         nowelcome = (getUrlParameter('nowelcome') === true)?true:false;
2310
2311         if(before > 0 && after > 0) {
2312                 nowelcome = true;
2313                 NETDATA.globalPanAndZoom.setMaster(NETDATA.options.targets[0], after, before);
2314         }
2315
2316         // ------------------------------------------------------------------------
2317         // https://github.com/viralpatel/jquery.shorten/blob/master/src/jquery.shorten.js
2318         $.fn.shorten = function(settings) {
2319                 "use strict";
2320
2321                 var config = {
2322                         showChars: 750,
2323                         minHideChars: 10,
2324                         ellipsesText: "...",
2325                         moreText: '<i class="fa fa-expand" aria-hidden="true"></i> show more information',
2326                         lessText: '<i class="fa fa-compress" aria-hidden="true"></i> show less information',
2327                         onLess: function() { NETDATA.onscroll(); },
2328                         onMore: function() { NETDATA.onscroll(); },
2329                         errMsg: null,
2330                         force: false
2331                 };
2332
2333                 if (settings) {
2334                         $.extend(config, settings);
2335                 }
2336
2337                 if ($(this).data('jquery.shorten') && !config.force) {
2338                         return false;
2339                 }
2340                 $(this).data('jquery.shorten', true);
2341
2342                 $(document).off("click", '.morelink');
2343
2344                 $(document).on({
2345                         click: function() {
2346
2347                                 var $this = $(this);
2348                                 if ($this.hasClass('less')) {
2349                                         $this.removeClass('less');
2350                                         $this.html(config.moreText);
2351                                         $this.parent().prev().animate({'height':'0'+'%'}, 0, function () { $this.parent().prev().prev().show(); }).hide(0, function() {
2352                                                 config.onLess();
2353                                         });
2354
2355                                 } else {
2356                                         $this.addClass('less');
2357                                         $this.html(config.lessText);
2358                                         $this.parent().prev().animate({'height':'100'+'%'}, 0, function () { $this.parent().prev().prev().hide(); }).show(0, function() {
2359                                                 config.onMore();
2360                                         });
2361                                 }
2362                                 return false;
2363                         }
2364                 }, '.morelink');
2365
2366                 return this.each(function() {
2367                         var $this = $(this);
2368
2369                         var content = $this.html();
2370                         var contentlen = $this.text().length;
2371                         if (contentlen > config.showChars + config.minHideChars) {
2372                                 var c = content.substr(0, config.showChars);
2373                                 if (c.indexOf('<') >= 0) // If there's HTML don't want to cut it
2374                                 {
2375                                         var inTag = false; // I'm in a tag?
2376                                         var bag = ''; // Put the characters to be shown here
2377                                         var countChars = 0; // Current bag size
2378                                         var openTags = []; // Stack for opened tags, so I can close them later
2379                                         var tagName = null;
2380
2381                                         for (var i = 0, r = 0; r <= config.showChars; i++) {
2382                                                 if (content[i] == '<' && !inTag) {
2383                                                         inTag = true;
2384
2385                                                         // This could be "tag" or "/tag"
2386                                                         tagName = content.substring(i + 1, content.indexOf('>', i));
2387
2388                                                         // If its a closing tag
2389                                                         if (tagName[0] == '/') {
2390
2391
2392                                                                 if (tagName != '/' + openTags[0]) {
2393                                                                         config.errMsg = 'ERROR en HTML: the top of the stack should be the tag that closes';
2394                                                                 } else {
2395                                                                         openTags.shift(); // Pops the last tag from the open tag stack (the tag is closed in the retult HTML!)
2396                                                                 }
2397
2398                                                         } else {
2399                                                                 // There are some nasty tags that don't have a close tag like <br/>
2400                                                                 if (tagName.toLowerCase() != 'br') {
2401                                                                         openTags.unshift(tagName); // Add to start the name of the tag that opens
2402                                                                 }
2403                                                         }
2404                                                 }
2405                                                 if (inTag && content[i] == '>') {
2406                                                         inTag = false;
2407                                                 }
2408
2409                                                 if (inTag) { bag += content.charAt(i); } // Add tag name chars to the result
2410                                                 else {
2411                                                         r++;
2412                                                         if (countChars <= config.showChars) {
2413                                                                 bag += content.charAt(i); // Fix to ie 7 not allowing you to reference string characters using the []
2414                                                                 countChars++;
2415                                                         } else // Now I have the characters needed
2416                                                         {
2417                                                                 if (openTags.length > 0) // I have unclosed tags
2418                                                                 {
2419                                                                         //console.log('They were open tags');
2420                                                                         //console.log(openTags);
2421                                                                         for (j = 0; j < openTags.length; j++) {
2422                                                                                 //console.log('Cierro tag ' + openTags[j]);
2423                                                                                 bag += '</' + openTags[j] + '>'; // Close all tags that were opened
2424
2425                                                                                 // You could shift the tag from the stack to check if you end with an empty stack, that means you have closed all open tags
2426                                                                         }
2427                                                                         break;
2428                                                                 }
2429                                                         }
2430                                                 }
2431                                         }
2432                                         c = $('<div/>').html(bag + '<span class="ellip">' + config.ellipsesText + '</span>').html();
2433                                 }else{
2434                                         c+=config.ellipsesText;
2435                                 }
2436
2437                                 var html = '<div class="shortcontent">' + c +
2438                                                 '</div><div class="allcontent">' + content +
2439                                                 '</div><span><a href="javascript://nop/" class="morelink">' + config.moreText + '</a></span>';
2440
2441                                 $this.html(html);
2442                                 $this.find(".allcontent").hide(); // Hide all text
2443                                 $('.shortcontent p:last', $this).css('margin-bottom', 0); //Remove bottom margin on last paragraph as it's likely shortened
2444                         }
2445                 });
2446
2447         };
2448         $(".chart-message").shorten();
2449         // ------------------------------------------------------------------------
2450
2451         // let it run (update the charts)
2452         NETDATA.unpause();
2453
2454         // check if we have to jump to a specific section
2455         scrollToId(location.hash.replace('#',''));
2456
2457         /* activate bootstrap sidebar (affix) */
2458         $('#sidebar').affix({
2459                 offset: {
2460                         top: (isdemo())?150:0,
2461                         bottom: 0
2462                 }
2463         });
2464
2465         /* fix scrolling of very long affix lists
2466            http://stackoverflow.com/questions/21691585/bootstrap-3-1-0-affix-too-long
2467          */
2468         $('#sidebar').on('affixed.bs.affix', function() {
2469                 $(this).removeAttr('style');
2470         });
2471
2472         /* activate bootstrap scrollspy (needed for sidebar) */
2473         $(document.body).scrollspy({
2474                 target: '#sidebar',
2475                 offset: $(window).height() / 3 // controls the diff of the <hX> element to the top, to select it
2476         });
2477
2478         // change the URL based on the current position of the screen
2479         $('#sidebar').on('activate.bs.scrollspy', function (e) {
2480                 var el = $(e.target);
2481                 if(el.find('ul').size() == 0)
2482                         history.replaceState(null, document.title, el.find('a').attr('href'));
2483         });
2484
2485         document.getElementById('footer').style.display = 'block';
2486
2487         var update_options_modal = function() {
2488                 // console.log('update_options_modal');
2489
2490                 var sync_option = function(option) {
2491                         var self = $('#' + option);
2492
2493                         if(self.prop('checked') !== NETDATA.getOption(option)) {
2494                                 // console.log('switching ' + option.toString());
2495                                 self.bootstrapToggle(NETDATA.getOption(option)?'on':'off');
2496                         }
2497                 }
2498
2499                 var theme_sync_option = function(option) {
2500                         var self = $('#' + option);
2501
2502                         self.bootstrapToggle(netdataTheme === 'slate'?'on':'off');
2503                 }
2504
2505                 sync_option('eliminate_zero_dimensions');
2506                 sync_option('destroy_on_hide');
2507                 sync_option('parallel_refresher');
2508                 sync_option('concurrent_refreshes');
2509                 sync_option('sync_selection');
2510                 sync_option('sync_pan_and_zoom');
2511                 sync_option('stop_updates_when_focus_is_lost');
2512                 sync_option('smooth_plot');
2513                 sync_option('pan_and_zoom_data_padding');
2514                 sync_option('show_help');
2515                 theme_sync_option('netdata_theme_control');
2516
2517                 if(NETDATA.getOption('parallel_refresher') === false) {
2518                         $('#concurrent_refreshes_row').hide();
2519                 }
2520                 else {
2521                         $('#concurrent_refreshes_row').show();
2522                 }
2523         };
2524         NETDATA.setOption('setOptionCallback', update_options_modal);
2525
2526         // handle options changes
2527         $('#eliminate_zero_dimensions').change(function()       { NETDATA.setOption('eliminate_zero_dimensions', $(this).prop('checked')); });
2528         $('#destroy_on_hide').change(function()                 { NETDATA.setOption('destroy_on_hide', $(this).prop('checked')); });
2529         $('#parallel_refresher').change(function()              { NETDATA.setOption('parallel_refresher', $(this).prop('checked')); });
2530         $('#concurrent_refreshes').change(function()            { NETDATA.setOption('concurrent_refreshes', $(this).prop('checked')); });
2531         $('#sync_selection').change(function()                  { NETDATA.setOption('sync_selection', $(this).prop('checked')); });
2532         $('#sync_pan_and_zoom').change(function()               { NETDATA.setOption('sync_pan_and_zoom', $(this).prop('checked')); });
2533         $('#stop_updates_when_focus_is_lost').change(function() { NETDATA.setOption('stop_updates_when_focus_is_lost', $(this).prop('checked')); });
2534         $('#smooth_plot').change(function()                     { NETDATA.setOption('smooth_plot', $(this).prop('checked')); });
2535         $('#pan_and_zoom_data_padding').change(function()       { NETDATA.setOption('pan_and_zoom_data_padding', $(this).prop('checked')); });
2536         $('#show_help').change(function()                       { NETDATA.setOption('show_help', $(this).prop('checked')); location.reload(); });
2537
2538         // this has to be the last
2539         // it reloads the page
2540         $('#netdata_theme_control').change(function() {
2541                 if(setTheme($(this).prop('checked')?'slate':'white'))
2542                         location.reload();
2543         });
2544
2545         $('#updateModal').on('shown.bs.modal', function() {
2546                 notifyForUpdate(true);
2547         });
2548
2549         $('#deleteRegistryModal').on('hidden.bs.modal', function() {
2550                 deleteRegistryGuid = null;
2551         });
2552
2553         if(isdemo()) {
2554                 if(!nowelcome) {
2555                         setTimeout(function() {
2556                                 $('#welcomeModal').modal();
2557                         }, 1000);
2558                 }
2559
2560                 // google analytics when this is used for the home page of the demo sites
2561                 // this does not run on user's installations
2562                 setTimeout(function() {
2563                         (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
2564                         (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
2565                         m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
2566                         })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
2567
2568                         ga('create', 'UA-64295674-3', 'auto');
2569                         ga('send', 'pageview');
2570                 }, 2000);
2571         }
2572         else notifyForUpdate();
2573 }
2574
2575 function resetDashboardOptions() {
2576         var help = NETDATA.options.current.show_help;
2577
2578         NETDATA.resetOptions();
2579         if(setTheme('slate'))
2580                 location.reload();
2581
2582         if(help !== NETDATA.options.current.show_help)
2583                 location.reload();
2584 }
2585
2586 downloadAllCharts();
2587
2588 </script>
2589
2590 </body>
2591 </html>